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12665162164 = 2264710134831
BaseRepresentation
bin10111100101110011…
…10000100110110100
31012200122201220022011
423302321300212310
5201414240142124
65452430214004
7625566050014
oct136271604664
935618656264
1012665162164
11540a176876
122555654304
13126abc6bc5
148820c7c44
154e1d60994
hex2f2e709b4

12665162164 has 24 divisors (see below), whose sum is σ = 22224803328. Its totient is φ = 6315244320.

The previous prime is 12665162089. The next prime is 12665162171. The reversal of 12665162164 is 46126156621.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619229 + ... + 2624059.

It is an arithmetic number, because the mean of its divisors is an integer number (926033472).

Almost surely, 212665162164 is an apocalyptic number.

It is an amenable number.

12665162164 is a deficient number, since it is larger than the sum of its proper divisors (9559641164).

12665162164 is a wasteful number, since it uses less digits than its factorization.

12665162164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495 (or 6493 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 12665162164 in words is "twelve billion, six hundred sixty-five million, one hundred sixty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 647 1013 1294 2026 2588 4052 4831 9662 19324 655411 1310822 2621644 3125657 4893803 6251314 9787606 12502628 19575212 3166290541 6332581082 12665162164