12636346564 has 12 divisors (see below), whose sum is σ = 22183367724. Its totient is φ = 6298241504.

The previous prime is 12636346559. The next prime is 12636346589. The reversal of 12636346564 is 46564363621.

12636346564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 315346564 + 12321000000 = 17758^2 + 111000^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4981519 + ... + 4984054.

It is an arithmetic number, because the mean of its divisors is an integer number (1848613977).

Almost surely, 2^12636346564 is an apocalyptic number.

It is an amenable number.

12636346564 is a deficient number, since it is larger than the sum of its proper divisors (9547021160).

12636346564 is a wasteful number, since it uses less digits than its factorization.

12636346564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9965894 (or 9965892 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 46.

The spelling of 12636346564 in words is "twelve billion, six hundred thirty-six million, three hundred forty-six thousand, five hundred sixty-four".