320316668 has 24 divisors (see below), whose sum is σ = 674352000. Its totient is φ = 130053168.

The previous prime is 320316637. The next prime is 320316709. The reversal of 320316668 is 866613023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300518 + ... + 301581.

It is an arithmetic number, because the mean of its divisors is an integer number (28098000).

Almost surely, 2^320316668 is an apocalyptic number.

320316668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

320316668 is an abundant number, since it is smaller than the sum of its proper divisors (354035332).

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

320316668 is a wasteful number, since it uses less digits than its factorization.

320316668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602129 (or 602127 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 320316668 is about 17897.3927710156. The cubic root of 320316668 is about 684.2159270634.

The spelling of 320316668 in words is "three hundred twenty million, three hundred sixteen thousand, six hundred sixty-eight".