12664074507 has 16 divisors (see below), whose sum is σ = 19377718272. Its totient is φ = 7206583680.

The previous prime is 12664074497. The next prime is 12664074509. The reversal of 12664074507 is 70547046621.

It is not a de Polignac number, because 12664074507 - 2⁸ = 12664074251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12664074509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246083 + ... + 1256204.

It is an arithmetic number, because the mean of its divisors is an integer number (1211107392).

Almost surely, 2^12664074507 is an apocalyptic number.

12664074507 is a deficient number, since it is larger than the sum of its proper divisors (6713643765).

12664074507 is a wasteful number, since it uses less digits than its factorization.

12664074507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502538.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 12664074507 in words is "twelve billion, six hundred sixty-four million, seventy-four thousand, five hundred seven".