664090316 has 24 divisors (see below), whose sum is σ = 1218067200. Its totient is φ = 316199312.

The previous prime is 664090303. The next prime is 664090331. The reversal of 664090316 is 613090466.

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, 4985 + ... + 36783.

It is an arithmetic number, because the mean of its divisors is an integer number (50752800).

Almost surely, 2^664090316 is an apocalyptic number.

It is an amenable number.

664090316 is a deficient number, since it is larger than the sum of its proper divisors (553976884).

664090316 is a wasteful number, since it uses less digits than its factorization.

664090316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32053 (or 32051 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 664090316 is about 25769.9498641344. The cubic root of 664090316 is about 872.4536871940.

The spelling of 664090316 in words is "six hundred sixty-four million, ninety thousand, three hundred sixteen".