320556696 has 32 divisors (see below), whose sum is σ = 820940400. Its totient is φ = 104245760.

The previous prime is 320556689. The next prime is 320556697. The reversal of 320556696 is 696655023.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320556697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161901 + ... + 163868.

Almost surely, 2^320556696 is an apocalyptic number.

It is an amenable number.

320556696 is an abundant number, since it is smaller than the sum of its proper divisors (500383704).

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

320556696 is a wasteful number, since it uses less digits than its factorization.

320556696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325819 (or 325815 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 320556696 is about 17904.0971847228. The cubic root of 320556696 is about 684.3867892050.

The spelling of 320556696 in words is "three hundred twenty million, five hundred fifty-six thousand, six hundred ninety-six".