12506460656 has 40 divisors (see below), whose sum is σ = 25078863600. Its totient is φ = 6034703360.

The previous prime is 12506460653. The next prime is 12506460679. The reversal of 12506460656 is 65606460521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12506460653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205411 + ... + 1215741.

It is an arithmetic number, because the mean of its divisors is an integer number (626971590).

Almost surely, 2^12506460656 is an apocalyptic number.

12506460656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12506460656 is an abundant number, since it is smaller than the sum of its proper divisors (12572402944).

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

12506460656 is a wasteful number, since it uses less digits than its factorization.

12506460656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12977 (or 12971 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 12506460656 in words is "twelve billion, five hundred six million, four hundred sixty thousand, six hundred fifty-six".