12664008 has 48 divisors (see below), whose sum is σ = 39199680. Its totient is φ = 3618144.

The previous prime is 12663991. The next prime is 12664019. The reversal of 12664008 is 80046621.

12664008 is a `hidden beast` number, since 12 + 6 + 640 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12060 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (816660).

Almost surely, 2^12664008 is an apocalyptic number.

12664008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12664008 is an abundant number, since it is smaller than the sum of its proper divisors (26535672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12664008 is a wasteful number, since it uses less digits than its factorization.

12664008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25146 (or 25139 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12664008 is about 3558.6525539873. The cubic root of 12664008 is about 233.0900448325.

The spelling of 12664008 in words is "twelve million, six hundred sixty-four thousand, eight".