66438165223521

Names of 66438165223521

• Cardinal: 66438165223521 can be written as Sixty-six trillion, four hundred thirty-eight billion, one hundred sixty-five million, two hundred twenty-three thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 6.6438165223521 × 10¹³

Factors of 66438165223521

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 505

Divisors of 66438165223521

• Number of divisors d(n): 243
• Complete list of divisors:
  1 3 7 9 13 21 39 49 63 73 91 117 147 169 219 273 409 441 507 511 637 657 819 949 1183 1227 1521 1533 1911 2847 2863 3549 3577 3681 4599 5317 5329 5733 6643 8281 8541 8589 10647 10731 12337 15951 15987 19929 20041 24843 25767 29857 32193 37011 37219 37303 46501 47853 47961 59787 60123 69121 69277 74529 86359 89571 111033 111657 111909 139503 167281 180369 207363 207831 208999 259077 260533 261121 268713 334971 335727 388141 418509 483847 484939 501843 604513 622089 623493 626997 777231 781599 783363 900601 1164423 1170967 1451541 1454817 1462993 1505529 1813539 1880991 2174653 2179561 2344797 2350089 2701803 2716987 3386929 3394573 3493269 3512901 4354623 4364451 4388979 5045833 5440617 6304207 6523959 6538683 8105409 8150961 8196769 10160787 10183719 10538703 12211513 13166937 15137499 15222571 15256927 18912621 19018909 19571877 19616049 24452883 24590307 28270489 28334293 30482361 30551157 35320831 36634539 44129449 45412497 45667713 45770781 56737863 57056727 73770921 84811467 85002879 85480591 105962493 106557997 106798489 109903617 132388347 137003139 137312343 158749669 171170181 197893423 198340051 247245817 254434401 255008637 256441773 317887479 319673991 320395467 368345809 397165041 476249007 593680269 595020153 598364137 741737451 769325319 891440449 959021973 961186401 1105037427 1111247683 1385253961 1388380357 1428747021 1781040807 1785060459 1795092411 2063745697 2225212353 2578420663 2674321347 3315112281 3333743049 4155761883 4165141071 5385277233 6191237091 6240083143 7735261989 7778733781 8022964041 10001229147 11588725837 12467285649 12495423213 14446219879 18048944641 18573711273 18720249429 23205785967 23336201343 34766177511 43338659637 43680582001 54146833923 56160748287 70008604029 81121080859 101123539153 104298532533 130015978911 131041746003 150653435881 162440501769 243363242577 303370617459 393125238009 451960307643 567847566013 730089727731 910111852377 1054574051167 1355880922929 1703542698039 3163722153501 5110628094117 7382018358169 9491166460503 22146055074507 66438165223521
• Sum of all divisors σ(n): 122860992642219
• Sum of proper divisors (its aliquot sum) s(n): 56422827418698
• 66438165223521 is a deficient number, because the sum of its proper divisors (56422827418698) is less than itself. Its deficiency is 10015337804823

Bases of 66438165223521

• Binary: 1111000110110011010111001111001101100001100001₂
• Hexadecimal: 0x3C6CD73CD861
• Base-36: NJT9S6W69

Squares and roots of 66438165223521

• 66438165223521 squared (66438165223521²) is 4414029798267875207891637441
• 66438165223521 cubed (66438165223521³) is 293260041038866161799947644768482457449761
• 66438165223521 is a perfect square number. Its square root is 8150961
• The cube root of 66438165223521 is 40501.6338767801

Scales and comparisons

• 66,438,165,223,521 seconds is equal to 2,112,528 years, 7 weeks, 4 days, 15 hours, 25 minutes, 21 seconds.
• To count from 1 to 66,438,165,223,521 would take you about five million, two hundred eighty-one thousand, three hundred twenty 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 66438165223521 cubic inches would be around 3375.1 feet tall.

Recreational maths with 66438165223521

• 66438165223521 backwards is 12532256183466
• The number of decimal digits it has is: 14
• The sum of 66438165223521's digits is 54
• More coming soon!