12656425607 has 16 divisors (see below), whose sum is σ = 14713588032. Its totient is φ = 10661829120.

The previous prime is 12656425549. The next prime is 12656425627. The reversal of 12656425607 is 70652465621.

It is a cyclic number.

It is not a de Polignac number, because 12656425607 - 2¹⁴ = 12656409223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656425627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542393 + ... + 565245.

It is an arithmetic number, because the mean of its divisors is an integer number (919599252).

Almost surely, 2^12656425607 is an apocalyptic number.

12656425607 is a deficient number, since it is larger than the sum of its proper divisors (2057162425).

12656425607 is a wasteful number, since it uses less digits than its factorization.

12656425607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 12656425607 in words is "twelve billion, six hundred fifty-six million, four hundred twenty-five thousand, six hundred seven".