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20718046120160 = 2552323923556083
BaseRepresentation
bin1001011010111110010111…
…10001111000100011100000
32201100121220020220210101102
410231133023301320203200
510203421024301321120
6112021423342253532
74235554332235424
oct455371361704340
981317806823342
1020718046120160
116668523a09924
1223a73678872a8
13b7391b3ab68c
14518a8a156b84
1525ddcd3a6d75
hex12d7cbc788e0

20718046120160 has 96 divisors (see below), whose sum is σ = 51288190571520. Its totient is φ = 7893737302528.

The previous prime is 20718046120139. The next prime is 20718046120199. The reversal of 20718046120160 is 6102164081702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10898522 + ... + 12657561.

It is an arithmetic number, because the mean of its divisors is an integer number (534251985120).

Almost surely, 220718046120160 is an apocalyptic number.

20718046120160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20718046120160 is an abundant number, since it is smaller than the sum of its proper divisors (30570144451360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20718046120160 is a wasteful number, since it uses less digits than its factorization.

20718046120160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23556360 (or 23556352 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 20718046120160 in words is "twenty trillion, seven hundred eighteen billion, forty-six million, one hundred twenty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 239 368 460 478 736 920 956 1195 1840 1912 2390 3680 3824 4780 5497 7648 9560 10994 19120 21988 27485 38240 43976 54970 87952 109940 175904 219880 439760 879520 23556083 47112166 94224332 117780415 188448664 235560830 376897328 471121660 541789909 753794656 942243320 1083579818 1884486640 2167159636 2708949545 3768973280 4334319272 5417899090 5629903837 8668638544 10835798180 11259807674 17337277088 21671596360 22519615348 28149519185 43343192720 45039230696 56299038370 86686385440 90078461392 112598076740 129487788251 180156922784 225196153480 258975576502 450392306960 517951153004 647438941255 900784613920 1035902306008 1294877882510 2071804612016 2589755765020 4143609224032 5179511530040 10359023060080 20718046120160