664576330 has 32 divisors (see below), whose sum is σ = 1323381888. Its totient is φ = 238257600.

The previous prime is 664576327. The next prime is 664576331. The reversal of 664576330 is 33675466.

It is not an unprimeable number, because it can be changed into a prime (664576331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34737 + ... + 50356.

It is an arithmetic number, because the mean of its divisors is an integer number (41355684).

Almost surely, 2^664576330 is an apocalyptic number.

664576330 is a deficient number, since it is larger than the sum of its proper divisors (658805558).

664576330 is a wasteful number, since it uses less digits than its factorization.

664576330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85182.

The product of its (nonzero) digits is 272160, while the sum is 40.

The square root of 664576330 is about 25779.3779987028. The cubic root of 664576330 is about 872.6664701531. Note that the first 3 decimals are identical.

The spelling of 664576330 in words is "six hundred sixty-four million, five hundred seventy-six thousand, three hundred thirty".