66644162640

Names of 66644162640

• Cardinal: 66644162640 can be written as Sixty-six billion, six hundred forty-four million, one hundred sixty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.664416264 × 10¹⁰

Factors of 66644162640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3505

Divisors of 66644162640

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 33 36 40 44 45 48 54 55 60 66 72 80 81 88 90 99 108 110 120 132 135 144 162 165 176 180 198 216 220 240 264 270 293 297 324 330 360 396 405 432 440 495 528 540 586 594 648 660 720 792 810 879 880 891 990 1080 1172 1188 1296 1320 1465 1485 1584 1620 1758 1782 1980 2160 2344 2376 2637 2640 2930 2970 3191 3223 3240 3516 3564 3960 4395 4455 4688 4752 5274 5860 5940 6382 6446 6480 7032 7128 7911 7920 8790 8910 9573 9669 10548 11720 11880 12764 12892 13185 14064 14256 15822 15955 16115 17580 17820 19146 19338 21096 23440 23733 23760 25528 25784 26370 28719 29007 31644 31910 32230 35101 35160 35640 38292 38676 39555 42192 47466 47865 48345 51056 51568 52740 57438 58014 63288 63820 64460 70202 70320 71280 76584 77352 79110 86157 87021 94932 95730 96690 105303 105480 114876 116028 118665 126576 127640 128920 140404 143595 145035 153168 154704 158220 172314 174042 175505 189864 191460 193380 210606 210960 229752 232056 237330 255280 257840 258471 261063 280808 287190 290070 315909 316440 344628 348084 351010 379728 382920 386760 421212 430785 435105 459504 464112 474660 516942 522126 526515 561616 574380 580140 631818 632880 689256 696168 702020 765840 773520 842424 861570 870210 934963 947727 949320 1033884 1044252 1053030 1148760 1160280 1263636 1292355 1305315 1378512 1392336 1404040 1579545 1684848 1723140 1740420 1869926 1895454 1898640 2067768 2088504 2106060 2297520 2320560 2527272 2584710 2610630 2804889 2808080 2843181 3159090 3446280 3480840 3739852 3790908 4135536 4177008 4212120 4674815 4738635 5054544 5169420 5221260 5609778 5686362 6318180 6892560 6961680 7479704 7581816 8414667 8424240 9349630 9477270 10284593 10338840 10442520 11219556 11372724 12636360 14024445 14215905 14959408 15163632 16829334 18699260 18954540 20569186 20677680 20885040 22439112 22745448 25244001 25272720 28048890 28431810 30853779 33658668 37398520 37909080 41138372 42073335 44878224 45490896 50488002 51422965 56097780 56863620 61707558 67317336 74797040 75732003 75818160 82276744 84146670 92561337 100976004 102845930 112195560 113727240 123415116 126220005 134634672 151464006 154268895 164553488 168293340 185122674 201952008 205691860 224391120 227454480 246830232 252440010 277684011 302928012 308537790 336586680 370245348 378660015 403904016 411383720 462806685 493660464 504880020 555368022 605856024 617075580 673173360 740490696 757320030 822767440 833052033 925613370 1009760040 1110736044 1211712048 1234151160 1388420055 1480981392 1514640060 1666104066 1851226740 2019520080 2221472088 2468302320 2776840110 3029280120 3332208132 3702453480 4165260165 4442944176 5553680220 6058560240 6664416264 7404906960 8330520330 11107360440 13328832528 16661040660 22214720880 33322081320 66644162640
• Sum of all divisors σ(n): 253448528256
• Sum of proper divisors (its aliquot sum) s(n): 186804365616
• 66644162640 is an abundant number, because the sum of its proper divisors (186804365616) is greater than itself. Its abundance is 120160202976

Bases of 66644162640

• Binary: 111110000100010011010011100001010000₂
• Hexadecimal: 0xF844D3850
• Base-36: UM67P00

Squares and roots of 66644162640

• 66644162640 squared (66644162640²) is 4441444413986771769600
• 66644162640 cubed (66644162640³) is 295996343882253908621783007744000
• The square root of 66644162640 is 258155.3072086645
• The cube root of 66644162640 is 4054.3450322493

Scales and comparisons

• 66,644,162,640 seconds is equal to 2,119 years, 4 weeks, 11 hours, 24 minutes.
• To count from 1 to 66,644,162,640 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 66644162640 cubic inches would be around 337.9 feet tall.

Recreational maths with 66644162640

• 66644162640 backwards is 04626144666
• 66644162640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 66644162640's digits is 45
• More coming soon!