664354350 has 72 divisors (see below), whose sum is σ = 1947176712. Its totient is φ = 161054400.

The previous prime is 664354331. The next prime is 664354367. The reversal of 664354350 is 53453466.

664354350 is a `hidden beast` number, since 6 + 64 + 3 + 543 + 50 = 666.

It is a congruent number.

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 in 35 ways as a sum of consecutive naturals, for example, 62157 + ... + 72056.

It is an arithmetic number, because the mean of its divisors is an integer number (27044121).

Almost surely, 2^664354350 is an apocalyptic number.

664354350 is an abundant number, since it is smaller than the sum of its proper divisors (1282822362).

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

664354350 is a wasteful number, since it uses less digits than its factorization.

664354350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134242 (or 134234 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 664354350 is about 25775.0722598405. The cubic root of 664354350 is about 872.5692974300.

The spelling of 664354350 in words is "six hundred sixty-four million, three hundred fifty-four thousand, three hundred fifty".