12656560910 has 64 divisors (see below), whose sum is σ = 26641446912. Its totient is φ = 4238900736.

The previous prime is 12656560909. The next prime is 12656560937. The reversal of 12656560910 is 1906565621.

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, 1848854 + ... + 1855686.

It is an arithmetic number, because the mean of its divisors is an integer number (416272608).

Almost surely, 2^12656560910 is an apocalyptic number.

12656560910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12656560910 is an abundant number, since it is smaller than the sum of its proper divisors (13984886002).

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

12656560910 is a wasteful number, since it uses less digits than its factorization.

12656560910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7457.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 12656560910 in words is "twelve billion, six hundred fifty-six million, five hundred sixty thousand, nine hundred ten".