164621155929261485440

Names of 164621155929261485440

• Cardinal: 164621155929261485440 can be written as One hundred sixty-four quintillion, six hundred twenty-one quadrillion, one hundred fifty-five trillion, nine hundred twenty-nine billion, two hundred sixty-one million, four hundred eighty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.6462115592926148544 × 10²⁰

Factors of 164621155929261485440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 393653629

Divisors of 164621155929261485440

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 280 320 448 560 640 896 1120 2240 2243 4480 4486 8972 11215 15701 17944 22430 31402 35888 41621 44860 62804 71776 78505 83242 89720 125608 143552 157010 166484 179440 208105 251216 287104 291347 314020 332968 358880 416210 502432 582694 628040 665936 717760 832420 1004864 1165388 1256080 1331872 1435520 1456735 1664840 2009728 2330776 2512160 2663744 2913470 3329680 4661552 5024320 5327488 5826940 6659360 9323104 10048640 11653880 13318720 18646208 23307760 26637440 37292416 46615520 93231040 93355903 186462080 186711806 373423612 393609751 466779515 653491321 746847224 787219502 933559030 1306982642 1493694448 1574439004 1867118060 1968048755 2613965284 2755268257 2987388896 3148878008 3267456605 3734236120 3936097510 5227930568 5510536514 5974777792 6297756016 6534913210 7468472240 7872195020 10455861136 11021073028 11949555584 12595512032 13069826420 13776341285 14936944480 15744390040 20911722272 22042146056 25191024064 26139652840 27552682570 29873888960 31488780080 41823444544 44084292112 50382048128 52279305680 55105365140 59747777920 62977560160 83646889088 88168584224 104558611360 110210730280 125955120320 176337168448 209117222720 220421460560 251910240640 352674336896 418234445440 440842921120 881685842240 882866671493 1763371684480 1765733342986 3531466685972 4414333357465 6180066700451 7062933371944 8828666714930 12360133400902 14125866743888 16382431446371 17657333429860 24720266801804 28251733487776 30900333502255 32764862892742 35314666859720 49440533603608 56503466975552 61800667004510 65529725785484 70629333719440 81912157231855 98881067207216 113006933951104 114677020124597 123601334009020 131059451570968 141258667438880 163824314463710 197762134414432 229354040249194 247202668018040 262118903141936 282517334877760 327648628927420 395524268828864 458708080498388 494405336036080 524237806283872 565034669755520 573385100622985 655297257854840 791048537657728 917416160996776 988810672072160 1048475612567744 1146770201245970 1310594515709680 1834832321993552 1977621344144320 2096951225135488 2293540402491940 2621189031419360 3669664643987104 3955242688288640 4587080804983880 5242378062838720 7339329287974208 9174161609967760 10484756125677440 14678658575948416 18348323219935520 36696646439871040 36745793734210153 73393292879742080 73491587468420306 146983174936840612 183728968671050765 257220556139471071 293966349873681224 367457937342101530 514441112278942142 587932699747362448 734915874684203060 1028882224557884284 1175865399494724896 1286102780697355355 1469831749368406120 2057764449115768568 2351730798989449792 2572205561394710710 2939663498736812240 4115528898231537136 4703461597978899584 5144411122789421420 5879326997473624480 8231057796463074272 10288822245578842840 11758653994947248960 16462115592926148544 20577644491157685680 23517307989894497920 32924231185852297088 41155288982315371360 82310577964630742720 164621155929261485440
• Sum of all divisors σ(n): 449979848516691440640
• Sum of proper divisors (its aliquot sum) s(n): 285358692587429955200
• 164621155929261485440 is an abundant number, because the sum of its proper divisors (285358692587429955200) is greater than itself. Its abundance is 120737536658168469760

Bases of 164621155929261485440

• Binary: 10001110110010010011110101010001111000001101110100100010110110000000₂
• Hexadecimal: 0x8EC93D51E0DD22D80
• Base-36: YQPPTHA60BVR4

Squares and roots of 164621155929261485440

• 164621155929261485440 squared (164621155929261485440²) is 27100124979486223923823874722155331993600
• 164621155929261485440 cubed (164621155929261485440³) is 4461253899950475882975536244805554071441415694789092573184000
• The square root of 164621155929261485440 is 12830477618.9065341217
• The cube root of 164621155929261485440 is 5480605.5852285369

Scales and comparisons

• 164,621,155,929,261,485,440 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 164,621,155,929,261,485,440 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 164621155929261485440 cubic inches would be around 456717.1 feet tall.

Recreational maths with 164621155929261485440

• 164621155929261485440 backwards is 044584162929551126461
• The number of decimal digits it has is: 21
• The sum of 164621155929261485440's digits is 85
• More coming soon!