12664562576 has 20 divisors (see below), whose sum is σ = 24540096000. Its totient is φ = 6331634592.

The previous prime is 12664562567. The next prime is 12664562633. The reversal of 12664562576 is 67526546621.

It is a super-2 number, since 2×12664562576² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147665 + ... + 217103.

It is an arithmetic number, because the mean of its divisors is an integer number (1227004800).

Almost surely, 2^12664562576 is an apocalyptic number.

12664562576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12664562576 is a deficient number, since it is larger than the sum of its proper divisors (11875533424).

12664562576 is a wasteful number, since it uses less digits than its factorization.

12664562576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80846 (or 80840 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The spelling of 12664562576 in words is "twelve billion, six hundred sixty-four million, five hundred sixty-two thousand, five hundred seventy-six".