664402352 has 10 divisors (see below), whose sum is σ = 1287279588. Its totient is φ = 332201168.

The previous prime is 664402337. The next prime is 664402367. The reversal of 664402352 is 253204466.

It is an interprime number because it is at equal distance from previous prime (664402337) and next prime (664402367).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20762558 + ... + 20762589.

Almost surely, 2^664402352 is an apocalyptic number.

It is an amenable number.

664402352 is a deficient number, since it is larger than the sum of its proper divisors (622877236).

664402352 is a wasteful number, since it uses less digits than its factorization.

664402352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41525155 (or 41525149 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 664402352 is about 25776.0034140283. The cubic root of 664402352 is about 872.5903123511.

The spelling of 664402352 in words is "six hundred sixty-four million, four hundred two thousand, three hundred fifty-two".