12796415656 has 16 divisors (see below), whose sum is σ = 23994764640. Its totient is φ = 6397811760.

The previous prime is 12796415651. The next prime is 12796415713. The reversal of 12796415656 is 65651469721.

It is a happy number.

It is a super-2 number, since 2×12796415656² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12796415651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123271 + ... + 201961.

It is an arithmetic number, because the mean of its divisors is an integer number (1499672790).

Almost surely, 2^12796415656 is an apocalyptic number.

It is an amenable number.

12796415656 is a deficient number, since it is larger than the sum of its proper divisors (11198348984).

12796415656 is a wasteful number, since it uses less digits than its factorization.

12796415656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99024 (or 99020 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The spelling of 12796415656 in words is "twelve billion, seven hundred ninety-six million, four hundred fifteen thousand, six hundred fifty-six".