12620722564 has 96 divisors (see below), whose sum is σ = 24966144000. Its totient is φ = 5553694080.

The previous prime is 12620722559. The next prime is 12620722577. The reversal of 12620722564 is 46522702621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12240729 + ... + 12241759.

It is an arithmetic number, because the mean of its divisors is an integer number (260064000).

Almost surely, 2^12620722564 is an apocalyptic number.

It is an amenable number.

12620722564 is a deficient number, since it is larger than the sum of its proper divisors (12345421436).

12620722564 is a wasteful number, since it uses less digits than its factorization.

12620722564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 12620722564 in words is "twelve billion, six hundred twenty million, seven hundred twenty-two thousand, five hundred sixty-four".