320171664 has 20 divisors (see below), whose sum is σ = 827110256. Its totient is φ = 106723872.

The previous prime is 320171653. The next prime is 320171669. The reversal of 320171664 is 466171023.

It is not an unprimeable number, because it can be changed into a prime (320171669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335074 + ... + 3335169.

Almost surely, 2^320171664 is an apocalyptic number.

It is an amenable number.

320171664 is an abundant number, since it is smaller than the sum of its proper divisors (506938592).

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

320171664 is a wasteful number, since it uses less digits than its factorization.

320171664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670254 (or 6670248 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 320171664 is about 17893.3413313445. The cubic root of 320171664 is about 684.1126656859.

The spelling of 320171664 in words is "three hundred twenty million, one hundred seventy-one thousand, six hundred sixty-four".