12500664 has 32 divisors (see below), whose sum is σ = 34093440. Its totient is φ = 3788000.

The previous prime is 12500647. The next prime is 12500693. The reversal of 12500664 is 46600521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23412 + ... + 23939.

It is an arithmetic number, because the mean of its divisors is an integer number (1065420).

Almost surely, 2^12500664 is an apocalyptic number.

It is an amenable number.

12500664 is an abundant number, since it is smaller than the sum of its proper divisors (21592776).

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

12500664 is a wasteful number, since it uses less digits than its factorization.

12500664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47371 (or 47367 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 12500664 is about 3535.6278084663. The cubic root of 12500664 is about 232.0835509612.

The spelling of 12500664 in words is "twelve million, five hundred thousand, six hundred sixty-four".