664513304 has 48 divisors (see below), whose sum is σ = 1560888000. Its totient is φ = 262882368.

The previous prime is 664513259. The next prime is 664513313. The reversal of 664513304 is 403315466.

It is a congruent number.

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, 60104 + ... + 70295.

It is an arithmetic number, because the mean of its divisors is an integer number (32518500).

Almost surely, 2^664513304 is an apocalyptic number.

It is an amenable number.

664513304 is an abundant number, since it is smaller than the sum of its proper divisors (896374696).

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

664513304 is a wasteful number, since it uses less digits than its factorization.

664513304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130432 (or 130421 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 664513304 is about 25778.1555585344. The cubic root of 664513304 is about 872.6388824438.

The spelling of 664513304 in words is "six hundred sixty-four million, five hundred thirteen thousand, three hundred four".