320164772 has 6 divisors (see below), whose sum is σ = 560288358. Its totient is φ = 160082384.

The previous prime is 320164771. The next prime is 320164813. The reversal of 320164772 is 277461023.

It can be written as a sum of positive squares in only one way, i.e., 178649956 + 141514816 = 13366^2 + 11896^2 .

It is not an unprimeable number, because it can be changed into a prime (320164771) 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 as a sum of consecutive naturals, namely, 40020593 + ... + 40020600.

It is an arithmetic number, because the mean of its divisors is an integer number (93381393).

Almost surely, 2^320164772 is an apocalyptic number.

It is an amenable number.

320164772 is a deficient number, since it is larger than the sum of its proper divisors (240123586).

320164772 is a wasteful number, since it uses less digits than its factorization.

320164772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80041197 (or 80041195 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 320164772 is about 17893.1487447011. The cubic root of 320164772 is about 684.1077569251.

The spelling of 320164772 in words is "three hundred twenty million, one hundred sixty-four thousand, seven hundred seventy-two".