66816643619808018

Names of 66816643619808018

• Cardinal: 66816643619808018 can be written as Sixty-six quadrillion, eight hundred sixteen trillion, six hundred forty-three billion, six hundred nineteen million, eight hundred eight thousand and eighteen.

Scientific notation

• Scientific notation: 6.6816643619808018 × 10¹⁶

Factors of 66816643619808018

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 81891

Divisors of 66816643619808018

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 18 27 54 97 194 291 582 873 1746 2619 5238 10459 20918 28429 31377 42901 56858 62754 85287 85802 94131 128703 170574 188262 255861 257406 282393 386109 511722 564786 767583 772218 1014523 1158327 1535166 2029046 2316654 2757613 3043569 4161397 5515226 6087138 8272839 8322794 9130707 12484191 16545678 18261414 24818517 24968382 27392121 37452573 49637034 54784242 74455551 74905146 112357719 148911102 224715438 297338911 448701559 594677822 892016733 897403118 1219632529 1346104677 1784033466 2439265058 2676050199 2692209354 3658897587 4038314031 5352100398 7317795174 8028150597 8076628062 10976692761 12114942093 16056301194 21953385522 24229884186 28841874367 32930078283 43524051223 57683748734 65860156566 86525623101 87048102446 118304355313 130572153669 173051246202 236608710626 259576869303 261144307338 354913065939 391716461007 519153738606 709826131878 778730607909 783432922014 1064739197817 1175149383021 1557461215818 2129478395634 2350298766042 3194217593451 6388435186902 12756136620811 25512273241622 38268409862433 76536819724866 114805229587299 229610459174598 344415688761897 688831377523794 1237345252218667 2474690504437334 3712035756656001 7424071513312002 11136107269968003 22272214539936006 33408321809904009 66816643619808018
• Sum of all divisors σ(n): 150035283937056000
• Sum of proper divisors (its aliquot sum) s(n): 83218640317247982
• 66816643619808018 is an abundant number, because the sum of its proper divisors (83218640317247982) is greater than itself. Its abundance is 16401996697439964

Bases of 66816643619808018

• Binary: 11101101011000010110001000100100000010101110001100010010₂
• Hexadecimal: 0xED6162240AE312
• Base-36: I9WIUBSM9SI

Squares and roots of 66816643619808018

• 66816643619808018 squared (66816643619808018²) is 4464463864616431518649127177088324
• 66816643619808018 cubed (66816643619808018³) is 298300490995586936076057322659753877237381109381832
• The square root of 66816643619808018 is 258489155.7102696291
• The cube root of 66816643619808018 is 405783.9686848415

Scales and comparisons

• 66,816,643,619,808,018 seconds is equal to 2,124,562,589 years, 34 weeks, 2 days, 16 hours, 18 seconds.
• To count from 1 to 66,816,643,619,808,018 would take you about six billion, three hundred seventy-three million, six hundred eighty-seven thousand, seven hundred sixty-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 66816643619808018 cubic inches would be around 33815.3 feet tall.

Recreational maths with 66816643619808018

• 66816643619808018 backwards is 81080891634661866
• The number of decimal digits it has is: 17
• The sum of 66816643619808018's digits is 81
• More coming soon!