664465298 has 32 divisors (see below), whose sum is σ = 1220655744. Its totient is φ = 264782592.

The previous prime is 664465271. The next prime is 664465301. The reversal of 664465298 is 892564466.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2936 + ... + 36572.

It is an arithmetic number, because the mean of its divisors is an integer number (38145492).

Almost surely, 2^664465298 is an apocalyptic number.

664465298 is a deficient number, since it is larger than the sum of its proper divisors (556190446).

664465298 is a wasteful number, since it uses less digits than its factorization.

664465298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33746.

The product of its digits is 2488320, while the sum is 50.

The square root of 664465298 is about 25777.2244045010. The cubic root of 664465298 is about 872.6178681111.

The spelling of 664465298 in words is "six hundred sixty-four million, four hundred sixty-five thousand, two hundred ninety-eight".