12636516896 has 24 divisors (see below), whose sum is σ = 24920133084. Its totient is φ = 6307594240.

The previous prime is 12636516877. The next prime is 12636516901. The reversal of 12636516896 is 69861563621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11850499600 + 786017296 = 108860^2 + 28036^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313985 + ... + 351936.

Almost surely, 2^12636516896 is an apocalyptic number.

12636516896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12636516896 is a deficient number, since it is larger than the sum of its proper divisors (12283616188).

12636516896 is an equidigital number, since it uses as much as digits as its factorization.

12636516896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666524 (or 666516 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The spelling of 12636516896 in words is "twelve billion, six hundred thirty-six million, five hundred sixteen thousand, eight hundred ninety-six".