66643625664

Names of 66643625664

• Cardinal: 66643625664 can be written as Sixty-six billion, six hundred forty-three million, six hundred twenty-five thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 6.6643625664 × 10¹⁰

Factors of 66643625664

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 13597

Divisors of 66643625664

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 37 42 44 48 54 56 63 64 66 72 74 77 84 88 96 99 108 111 112 126 132 144 148 154 168 176 189 192 198 216 222 224 231 252 259 264 288 296 297 308 333 336 352 378 396 407 432 444 448 462 504 518 528 576 592 594 616 666 672 693 704 756 777 792 814 864 888 924 999 1008 1036 1056 1184 1188 1221 1232 1332 1344 1386 1512 1554 1584 1628 1728 1776 1848 1998 2016 2072 2079 2112 2331 2368 2376 2442 2464 2664 2772 2849 3024 3108 3168 3256 3552 3663 3696 3996 4032 4144 4158 4662 4752 4884 4928 5328 5544 5698 6048 6216 6336 6512 6993 7104 7326 7392 7992 8288 8316 8547 9324 9504 9768 10656 10989 11088 11396 12096 12432 13024 13537 13986 14652 14784 15984 16576 16632 17094 18648 19008 19536 21312 21978 22176 22792 24864 25641 26048 27074 27972 29304 31968 33264 34188 37296 39072 40611 43956 44352 45584 49728 51282 54148 55944 58608 63936 66528 68376 74592 76923 78144 81222 87912 91168 94759 102564 108296 111888 117216 121833 133056 136752 148907 149184 153846 162444 175824 182336 189518 205128 216592 223776 234432 243666 273504 284277 297814 307692 324888 351648 365499 379036 410256 433184 446721 447552 487332 500869 547008 568554 595628 615384 649776 703296 730998 758072 820512 852831 866368 893442 974664 1001738 1042349 1137108 1191256 1230768 1299552 1340163 1461996 1502607 1516144 1641024 1705662 1786884 1949328 2003476 2084698 2274216 2382512 2461536 2558493 2599104 2680326 2923992 3005214 3032288 3127047 3411324 3506083 3573768 3898656 4006952 4020489 4169396 4507821 4548432 4765024 4923072 5116986 5360652 5509559 5847984 6010428 6064576 6254094 6822648 7012166 7147536 7797312 8013904 8040978 8338792 9015642 9096864 9381141 9530048 10233972 10518249 10721304 11019118 11695968 12020856 12508188 13523463 13645296 14024332 14295072 16027808 16081956 16528677 16677584 18031284 18193728 18762282 20467944 21036498 21442608 22038236 23391936 24041712 25016376 27046926 27290592 28048664 28143423 28590144 31554747 32055616 32163912 33057354 33355168 36062568 37524564 38566913 40935888 42072996 42885216 44076472 48083424 49586031 50032752 54093852 54581184 56097328 56286846 63109494 64327824 66114708 66710336 72125136 75049128 77133826 81871776 84145992 85770432 88152944 94664241 96166848 99172062 100065504 108187704 112194656 112573692 115700739 126218988 128655648 132229416 144250272 148758093 150098256 154267652 163743552 168291984 176305888 189328482 198344124 200131008 216375408 224389312 225147384 231401478 252437976 257311296 264458832 288500544 297516186 300196512 308535304 336583968 347102217 352611776 378656964 396688248 432750816 450294768 462802956 504875952 528917664 595032372 600393024 617070608 673167936 694204434 757313928 793376496 865501632 900589536 925605912 1009751904 1041306651 1057835328 1190064744 1234141216 1388408868 1514627856 1586752992 1801179072 1851211824 2019503808 2082613302 2380129488 2468282432 2776817736 3029255712 3173505984 3702423648 4165226604 4760258976 5553635472 6058511424 7404847296 8330453208 9520517952 11107270944 16660906416 22214541888 33321812832 66643625664
• Sum of all divisors σ(n): 250884049920
• Sum of proper divisors (its aliquot sum) s(n): 184240424256
• 66643625664 is an abundant number, because the sum of its proper divisors (184240424256) is greater than itself. Its abundance is 117596798592

Bases of 66643625664

• Binary: 111110000100010001010000011011000000₂
• Hexadecimal: 0xF844506C0
• Base-36: UM5W6O0

Squares and roots of 66643625664

• 66643625664 squared (66643625664²) is 4441372841643359440896
• 66643625664 cubed (66643625664³) is 295989189092735997170473356754944
• The square root of 66643625664 is 258154.2671814665
• The cube root of 66643625664 is 4054.3341431145

Scales and comparisons

• 66,643,625,664 seconds is equal to 2,119 years, 3 weeks, 1 day, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 66,643,625,664 would take you about four thousand, two hundred thirty-eight 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 66643625664 cubic inches would be around 337.9 feet tall.

Recreational maths with 66643625664

• 66643625664 backwards is 46652634666
• 66643625664 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 66643625664's digits is 54
• More coming soon!