161664208928157312

Names of 161664208928157312

• Cardinal: 161664208928157312 can be written as One hundred sixty-one quadrillion, six hundred sixty-four trillion, two hundred eight billion, nine hundred twenty-eight million, one hundred fifty-seven thousand, three hundred twelve.

Scientific notation

• Scientific notation: 1.61664208928157312 × 10¹⁷

Factors of 161664208928157312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 12450848646

Divisors of 161664208928157312

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 32 34 36 39 48 51 52 54 64 68 72 78 96 102 104 108 117 128 136 144 153 156 192 204 208 216 221 234 272 288 289 306 312 351 384 408 416 432 442 459 468 544 576 578 612 624 663 702 816 832 864 867 884 918 936 1088 1152 1156 1224 1248 1326 1404 1632 1664 1728 1734 1768 1836 1872 1989 2176 2312 2448 2496 2601 2652 2808 3264 3456 3468 3536 3672 3744 3757 3978 4624 4896 4992 5202 5304 5616 5967 6528 6936 7072 7344 7488 7514 7803 7956 9248 9792 10404 10608 11232 11271 11934 13872 14144 14688 14976 15028 15606 15912 18496 19584 20808 21216 22464 22542 23868 27744 28288 29376 30056 31212 31824 33813 36992 41616 42432 44928 45084 47736 55488 58752 60112 62424 63648 67626 83232 84864 90168 95472 101439 110976 120224 124848 127296 135252 166464 180336 190944 202878 240448 249696 254592 270504 332928 360672 381888 405756 480896 499392 541008 721344 763776 811512 998784 1082016 1442688 1623024 2164032 3246048 4328064 6492096 12984192 12450848611 24901697222 37352545833 49803394444 74705091666 99606788888 112057637499 149410183332 161861031943 199213577776 211664426387 224115274998 298820366664 323722063886 336172912497 398427155552 423328852774 448230549996 485583095829 597640733328 634993279161 647444127772 672345824994 796854311104 846657705548 896461099992 971166191658 1195281466656 1269986558322 1294888255544 1344691649988 1456749287487 1593708622208 1693315411096 1792922199984 1904979837483 1942332383316 2390562933312 2539973116644 2589776511088 2689383299976 2751637543031 2913498574974 3386630822192 3585844399968 3598295248579 3809959674966 3884664766632 4370247862461 4781125866624 5079946233288 5179553022176 5378766599952 5503275086062 5714939512449 5826997149948 6773261644384 7171688799936 7196590497158 7619919349932 7769329533264 8254912629093 8740495724922 10159892466576 10359106044352 10757533199904 10794885745737 11006550172124 11429879024898 11653994299896 13546523288768 14343377599872 14393180994316 15239838699864 15538659066528 16509825258186 17480991449844 20319784933152 20718212088704 21515066399808 21589771491474 22013100344248 22859758049796 23307988599792 24764737887279 27093046577536 28786361988632 30479677399728 31077318133056 32384657237211 33019650516372 34961982899688 40639569866304 43030132799616 43179542982948 44026200688496 45719516099592 46615977199584 46777838231527 49529475774558 57572723977264 60959354799456 62154636266112 64769314474422 66039301032744 69923965799376 74294213661837 81279139732608 86359085965896 88052401376992 91439032199184 93231954399168 93555676463054 97153971711633 99058951549116 115145447954528 121918709598912 129538628948844 132078602065488 139847931598752 140333514694581 148588427323674 172718171931792 176104802753984 182878064398368 186463908798336 187111352926108 194307943423266 198117903098232 230290895909056 243837419197824 259077257897688 264157204130976 279695863197504 280667029389162 297176854647348 345436343863584 352209605507968 365756128796736 374222705852216 388615886846532 396235806196464 421000544083743 460581791818112 518154515795376 528314408261952 559391726395008 561334058778324 594353709294696 690872687727168 731512257593472 748445411704432 777231773693064 792471612392928 842001088167486 1036309031590752 1056628816523904 1122668117556648 1188707418589392 1263001632251229 1381745375454336 1496890823408864 1554463547386128 1584943224785856 1684002176334972 2072618063181504 2245336235113296 2377414837178784 2526003264502458 2993781646817728 3108927094772256 3169886449571712 3368004352669944 4145236126363008 4490672470226592 4754829674357568 5052006529004916 5987563293635456 6217854189544512 6736008705339888 8981344940453184 9509659348715136 10104013058009832 12435708379089024 13472017410679776 17962689880906368 20208026116019664 26944034821359552 40416052232039328 53888069642719104 80832104464078656 161664208928157312
• Sum of all divisors σ(n): 545840222810635200
• Sum of proper divisors (its aliquot sum) s(n): 384176013882477888
• 161664208928157312 is an abundant number, because the sum of its proper divisors (384176013882477888) is greater than itself. Its abundance is 222511804954320576

Bases of 161664208928157312

• Binary: 1000111110010110001011110111010010000011101010111010000000₂
• Hexadecimal: 0x23E58BDD20EAE80
• Base-36: 187T6GB1N6O0

Squares and roots of 161664208928157312

• 161664208928157312 squared (161664208928157312²) is 26135316448366898349253787819065344
• 161664208928157312 cubed (161664208928157312³) is 4225145258712292578034228160389879045969584039395328
• The square root of 161664208928157312 is 402074879.7527113755
• The cube root of 161664208928157312 is 544759.2673908249

Scales and comparisons

• 161,664,208,928,157,312 seconds is equal to 5,140,421,783 years, 35 weeks, 4 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 161,664,208,928,157,312 would take you about fifteen billion, four hundred twenty-one million, two hundred sixty-five thousand, three hundred fifty-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 161664208928157312 cubic inches would be around 45396.6 feet tall.

Recreational maths with 161664208928157312

• 161664208928157312 backwards is 213751829802466161
• 161664208928157312 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 161664208928157312's digits is 72
• More coming soon!