664364360 has 32 divisors (see below), whose sum is σ = 1630713600. Its totient is φ = 241586880.

The previous prime is 664364357. The next prime is 664364383. The reversal of 664364360 is 63463466.

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, 754520 + ... + 755399.

It is an arithmetic number, because the mean of its divisors is an integer number (50959800).

Almost surely, 2^664364360 is an apocalyptic number.

It is an amenable number.

664364360 is an abundant number, since it is smaller than the sum of its proper divisors (966349240).

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

664364360 is a wasteful number, since it uses less digits than its factorization.

664364360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509941 (or 1509937 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 38.

The square root of 664364360 is about 25775.2664389721. The cubic root of 664364360 is about 872.5736798176.

The spelling of 664364360 in words is "six hundred sixty-four million, three hundred sixty-four thousand, three hundred sixty".