66601721872505664

Names of 66601721872505664

• Cardinal: 66601721872505664 can be written as Sixty-six quadrillion, six hundred one trillion, seven hundred twenty-one billion, eight hundred seventy-two million, five hundred five thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 6.6601721872505664 × 10¹⁶

Factors of 66601721872505664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 395060

Divisors of 66601721872505664

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 27 32 36 38 39 48 52 54 57 64 72 76 78 96 104 108 114 117 144 152 156 171 192 208 216 228 234 247 288 304 312 342 351 416 432 456 468 494 513 576 608 624 684 702 741 832 864 912 936 988 1026 1216 1248 1368 1404 1482 1728 1824 1872 1976 2052 2223 2496 2736 2808 2964 3648 3744 3952 4104 4446 5472 5616 5928 6669 7488 7904 8208 8892 10944 11232 11856 13338 15808 16416 17784 22464 23712 26676 32832 35568 47424 53352 71136 106704 142272 213408 395023 426816 790046 1185069 1580092 2370138 3160184 3555207 4740276 5135299 6320368 7110414 7505437 9480552 10270598 10665621 12640736 14220828 15010874 15405897 18961104 20541196 21331242 22516311 25281472 28441656 30021748 30811794 37922208 41082392 42662484 45032622 46217691 56883312 60043496 61623588 67548933 75844416 82164784 85324968 90065244 92435382 97570681 113766624 120086992 123247176 135097866 138653073 164329568 170649936 180130488 184870764 195141362 202646799 227533248 240173984 246494352 270195732 277306146 292712043 328659136 341299872 360260976 369741528 390282724 405293598 480347968 492988704 540391464 554612292 585424086 682599744 720521952 739483056 780565448 810587196 878136129 985977408 1080782928 1109224584 1170848172 1441043904 1478966112 1561130896 1621174392 1756272258 2161565856 2218449168 2341696344 2634408387 2957932224 3122261792 3242348784 3512544516 4323131712 4436898336 4683392688 5268816774 6244523584 6484697568 7025089032 8873796672 9366785376 10537633548 12969395136 14050178064 18733570752 21075267096 28100356128 42150534192 56200712256 84301068384 156043170529 168602136768 312086341058 468129511587 624172682116 936259023174 1248345364232 1404388534761 1872518046348 2028561216877 2496690728464 2808777069522 2964820240051 3745036092696 4057122433754 4213165604283 4993381456928 5617554139044 5929640480102 6085683650631 7490072185392 8114244867508 8426331208566 8894460720153 9986762913856 11235108278088 11859280960204 12171367301262 14980144370784 16228489735016 16852662417132 17788921440306 18257050951893 22470216556176 23718561920408 24342734602524 26683382160459 29960288741568 32456979470032 33705324834264 35577842880612 36514101903786 38542663120663 44940433112352 47437123840816 48685469205048 53366764320918 54771152855679 64913958940064 67410649668528 71155685761224 73028203807572 77085326241326 80050146481377 89880866224704 94874247681632 97370938410096 106733528641836 109542305711358 115627989361989 129827917880128 134821299337056 142311371522448 146056407615144 154170652482652 160100292962754 189748495363264 194741876820192 213467057283672 219084611422716 231255978723978 269642598674112 284622743044896 292112815230288 308341304965304 320200585925508 346883968085967 389483753640384 426934114567344 438169222845432 462511957447956 569245486089792 584225630460576 616682609930608 640401171851016 693767936171934 853868229134688 876338445690864 925023914895912 1040651904257901 1168451260921152 1233365219861216 1280802343702032 1387535872343868 1707736458269376 1752676891381728 1850047829791824 2081303808515802 2466730439722432 2561604687404064 2775071744687736 3505353782763456 3700095659583648 4162607617031604 5123209374808128 5550143489375472 7400191319167296 8325215234063208 11100286978750944 16650430468126416 22200573957501888 33300860936252832 66601721872505664
• Sum of all divisors σ(n): 221956367642587200
• Sum of proper divisors (its aliquot sum) s(n): 155354645770081536
• 66601721872505664 is an abundant number, because the sum of its proper divisors (155354645770081536) is greater than itself. Its abundance is 88752923897575872

Bases of 66601721872505664

• Binary: 11101100100111011110100111000101101000111101101101000000₂
• Hexadecimal: 0xEC9DE9C5A3DB40
• Base-36: I7SC8N1E1C0

Squares and roots of 66601721872505664

• 66601721872505664 squared (66601721872505664²) is 4435789356382599370561621712080896
• 66601721872505664 cubed (66601721872505664³) is 295431208998814790287653244433403969637974986194944
• The square root of 66601721872505664 is 258073094.0499331945
• The cube root of 66601721872505664 is 405348.4211400699

Scales and comparisons

• 66,601,721,872,505,664 seconds is equal to 2,117,728,742 years, 46 weeks, 3 days, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 66,601,721,872,505,664 would take you about six billion, three hundred fifty-three million, one hundred eighty-six thousand, two hundred twenty-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 66601721872505664 cubic inches would be around 33779 feet tall.

Recreational maths with 66601721872505664

• 66601721872505664 backwards is 46650527812710666
• 66601721872505664 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 66601721872505664's digits is 72
• More coming soon!