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12545367817660 = 22516746314235701
BaseRepresentation
bin1011011010001111001000…
…1100010011110110111100
31122102022210020211202001221
42312203302030103312330
53121020403130131120
642403132403043124
72433241623664006
oct266436214236674
948368706752057
1012545367817660
113aa7508092187
1214a74623704a4
1370003ba02982
143152b0259376
1516b5018ea0aa
hexb68f2313dbc

12545367817660 has 96 divisors (see below), whose sum is σ = 26583597637632. Its totient is φ = 4972954694400.

The previous prime is 12545367817621. The next prime is 12545367817673. The reversal of 12545367817660 is 6671876354521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2200552810 + ... + 2200558510.

It is an arithmetic number, because the mean of its divisors is an integer number (276912475392).

Almost surely, 212545367817660 is an apocalyptic number.

12545367817660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12545367817660 is an abundant number, since it is smaller than the sum of its proper divisors (14038229819972).

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

12545367817660 is a wasteful number, since it uses less digits than its factorization.

12545367817660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763 (or 7761 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 12545367817660 in words is "twelve trillion, five hundred forty-five billion, three hundred sixty-seven million, eight hundred seventeen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 167 334 463 668 835 926 1423 1670 1852 2315 2846 3340 4630 5692 5701 7115 9260 11402 14230 22804 28460 28505 57010 77321 114020 154642 237641 309284 386605 475282 658849 773210 950564 952067 1188205 1317698 1546420 1904134 2376410 2635396 2639563 3294245 3808268 4752820 4760335 5279126 6588490 8112523 9520670 10558252 13176980 13197815 16225046 19041340 26395630 32450092 40562615 52791260 81125230 110027783 162250460 220055566 440111132 440807021 550138915 881614042 1100277830 1354791341 1763228084 2200555660 2204035105 2709582682 3756098149 4408070210 5419165364 6773956705 7512196298 8816140420 13547913410 15024392596 18780490745 27095826820 37560981490 75121962980 627268390883 1254536781766 2509073563532 3136341954415 6272683908830 12545367817660