12656504315 has 32 divisors (see below), whose sum is σ = 18771056640. Its totient is φ = 7977561984.

The previous prime is 12656504303. The next prime is 12656504321. The reversal of 12656504315 is 51340565621.

It is not a de Polignac number, because 12656504315 - 2¹⁰ = 12656503291 is a prime.

It is a super-2 number, since 2×12656504315² (a number of 21 digits) contains 22 as substring.

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, 50552 + ... + 166938.

It is an arithmetic number, because the mean of its divisors is an integer number (586595520).

Almost surely, 2^12656504315 is an apocalyptic number.

12656504315 is a deficient number, since it is larger than the sum of its proper divisors (6114552325).

12656504315 is a wasteful number, since it uses less digits than its factorization.

12656504315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116651.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 12656504315 in words is "twelve billion, six hundred fifty-six million, five hundred four thousand, three hundred fifteen".