664864482 has 8 divisors (see below), whose sum is σ = 1329728976. Its totient is φ = 221621492.

The previous prime is 664864477. The next prime is 664864493. The reversal of 664864482 is 284468466.

It is a sphenic number, since it is the product of 3 distinct primes.

664864482 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55405368 + ... + 55405379.

It is an arithmetic number, because the mean of its divisors is an integer number (166216122).

Almost surely, 2^664864482 is an apocalyptic number.

664864482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

664864482 is a wasteful number, since it uses less digits than its factorization.

664864482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110810752.

The product of its digits is 1769472, while the sum is 48.

The square root of 664864482 is about 25784.9662012577. The cubic root of 664864482 is about 872.7925776909.

The spelling of 664864482 in words is "six hundred sixty-four million, eight hundred sixty-four thousand, four hundred eighty-two".