664672204 has 12 divisors (see below), whose sum is σ = 1329344464. Its totient is φ = 284859504.

The previous prime is 664672201. The next prime is 664672207. The reversal of 664672204 is 402276466.

It is an interprime number because it is at equal distance from previous prime (664672201) and next prime (664672207).

664672204 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (664672201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11869119 + ... + 11869174.

Almost surely, 2^664672204 is an apocalyptic number.

It is an amenable number.

664672204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

664672204 is a wasteful number, since it uses less digits than its factorization.

664672204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23738304 (or 23738302 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 664672204 is about 25781.2374412091. The cubic root of 664672204 is about 872.7084327280.

The spelling of 664672204 in words is "six hundred sixty-four million, six hundred seventy-two thousand, two hundred four".