66721968000

Names of 66721968000

• Cardinal: 66721968000 can be written as Sixty-six billion, seven hundred twenty-one million, nine hundred sixty-eight thousand.

Scientific notation

• Scientific notation: 6.6721968 × 10¹⁰

Factors of 66721968000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 141

Divisors of 66721968000

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 64 72 75 80 81 90 96 100 108 120 125 128 131 135 144 150 160 162 180 192 200 216 225 240 243 250 262 270 288 300 320 324 360 375 384 393 400 405 432 450 480 486 500 524 540 576 600 640 648 655 675 720 750 786 800 810 864 900 960 972 1000 1048 1080 1125 1152 1179 1200 1215 1296 1310 1350 1440 1500 1572 1600 1620 1728 1800 1920 1944 1965 2000 2025 2096 2160 2250 2358 2400 2430 2592 2620 2700 2880 3000 3144 3200 3240 3275 3375 3456 3537 3600 3888 3930 4000 4050 4192 4320 4500 4716 4800 4860 5184 5240 5400 5760 5895 6000 6075 6288 6480 6550 6750 7074 7200 7776 7860 8000 8100 8384 8640 9000 9432 9600 9720 9825 10125 10368 10480 10611 10800 11790 12000 12150 12576 12960 13100 13500 14148 14400 15552 15720 16000 16200 16375 16768 17161 17280 17685 18000 18864 19440 19650 20250 20960 21222 21600 23580 24000 24300 25152 25920 26200 27000 28296 28800 29475 30375 31104 31440 31833 32400 32750 34322 35370 36000 37728 38880 39300 40500 41920 42444 43200 47160 48000 48600 49125 50304 51483 51840 52400 53055 54000 56592 58950 60750 62880 63666 64800 65500 68644 70740 72000 75456 77760 78600 81000 83840 84888 85805 86400 88425 94320 97200 98250 102966 104800 106110 108000 113184 117900 121500 125760 127332 129600 131000 137288 141480 144000 147375 150912 154449 155520 157200 159165 162000 169776 171610 176850 188640 194400 196500 205932 209600 212220 216000 226368 235800 243000 251520 254664 257415 259200 262000 265275 274576 282960 294750 308898 314400 318330 324000 339552 343220 353700 377280 388800 393000 411864 419200 424440 429025 432000 442125 452736 463347 471600 486000 509328 514830 524000 530550 549152 565920 589500 617796 628800 636660 648000 679104 686440 707400 754560 772245 777600 786000 795825 823728 848880 858050 884250 926694 943200 972000 1018656 1029660 1048000 1061100 1098304 1131840 1179000 1235592 1257600 1273320 1287075 1296000 1326375 1358208 1372880 1390041 1414800 1544490 1572000 1591650 1647456 1697760 1716100 1768500 1853388 1886400 1944000 2037312 2059320 2096000 2122200 2145125 2196608 2263680 2316735 2358000 2471184 2546640 2574150 2652750 2745760 2780082 2829600 3088980 3144000 3183300 3294912 3395520 3432200 3537000 3706776 3772800 3861225 3888000 3979125 4074624 4118640 4170123 4244400 4290250 4633470 4716000 4942368 5093280 5148300 5305500 5491520 5560164 5659200 6177960 6288000 6366600 6435375 6589824 6791040 6864400 6950205 7074000 7413552 7722450 7958250 8237280 8340246 8488800 8580500 9266940 9432000 9884736 10186560 10296600 10611000 10983040 11120328 11318400 11583675 12355920 12733200 12870750 13728800 13900410 14148000 14827104 15444900 15916500 16474560 16680492 16977600 17161000 18533880 18864000 19306125 19769472 20373120 20593200 20850615 21222000 22240656 23167350 24711840 25466400 25741500 27457600 27800820 28296000 29654208 30889800 31833000 32949120 33360984 33955200 34322000 34751025 37067760 38612250 41186400 41701230 42444000 44481312 46334700 49423680 50932800 51483000 54915200 55601640 56592000 57918375 59308416 61779600 63666000 66721968 68644000 69502050 74135520 77224500 82372800 83402460 84888000 88962624 92669400 98847360 101865600 102966000 104253075 111203280 115836750 123559200 127332000 133443936 137288000 139004100 148271040 154449000 164745600 166804920 169776000 173755125 177925248 185338800 205932000 208506150 222406560 231673500 247118400 254664000 266887872 274576000 278008200 296542080 308898000 333609840 347510250 370677600 411864000 417012300 444813120 463347000 494236800 509328000 521265375 533775744 556016400 617796000 667219680 695020500 741355200 823728000 834024600 889626240 926694000 1042530750 1112032800 1235592000 1334439360 1390041000 1482710400 1668049200 1853388000 2085061500 2224065600 2471184000 2668878720 2780082000 3336098400 3706776000 4170123000 4448131200 5560164000 6672196800 7413552000 8340246000 11120328000 13344393600 16680492000 22240656000 33360984000 66721968000
• Sum of all divisors σ(n): 250401256560
• Sum of proper divisors (its aliquot sum) s(n): 183679288560
• 66721968000 is an abundant number, because the sum of its proper divisors (183679288560) is greater than itself. Its abundance is 116957320560

Bases of 66721968000

• Binary: 111110001000111100000110111110000000₂
• Hexadecimal: 0xF88F06F80
• Base-36: UNGJC00

Squares and roots of 66721968000

• 66721968000 squared (66721968000²) is 4451821013793024000000
• 66721968000 cubed (66721968000³) is 297034259224025705951232000000000
• The square root of 66721968000 is 258305.9581194363
• The cube root of 66721968000 is 4055.9222001113

Scales and comparisons

• 66,721,968,000 seconds is equal to 2,121 years, 28 weeks, 5 days.
• To count from 1 to 66,721,968,000 would take you about four thousand, two hundred forty-three 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 66721968000 cubic inches would be around 338 feet tall.

Recreational maths with 66721968000

• 66721968000 backwards is 00086912766
• 66721968000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 66721968000's digits is 45
• More coming soon!