664835630 has 8 divisors (see below), whose sum is σ = 1196704152. Its totient is φ = 265934248.

The previous prime is 664835597. The next prime is 664835651. The reversal of 664835630 is 36538466.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33241772 + ... + 33241791.

It is an arithmetic number, because the mean of its divisors is an integer number (149588019).

Almost surely, 2^664835630 is an apocalyptic number.

664835630 is a deficient number, since it is larger than the sum of its proper divisors (531868522).

664835630 is a wasteful number, since it uses less digits than its factorization.

664835630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66483570.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 664835630 is about 25784.4067218930. The cubic root of 664835630 is about 872.7799524736.

The spelling of 664835630 in words is "six hundred sixty-four million, eight hundred thirty-five thousand, six hundred thirty".