664320710 has 8 divisors (see below), whose sum is σ = 1195777296. Its totient is φ = 265728280.

The previous prime is 664320691. The next prime is 664320737. The reversal of 664320710 is 17023466.

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

It is a Curzon number.

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, 33216026 + ... + 33216045.

It is an arithmetic number, because the mean of its divisors is an integer number (149472162).

Almost surely, 2^664320710 is an apocalyptic number.

664320710 is a deficient number, since it is larger than the sum of its proper divisors (531456586).

664320710 is a wasteful number, since it uses less digits than its factorization.

664320710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66432078.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 664320710 is about 25774.4196830889. The cubic root of 664320710 is about 872.5545694832.

The spelling of 664320710 in words is "six hundred sixty-four million, three hundred twenty thousand, seven hundred ten".