320187371164 has 48 divisors (see below), whose sum is σ = 578126626560. Its totient is φ = 155089531520.

The previous prime is 320187371149. The next prime is 320187371201. The reversal of 320187371164 is 461173781023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320187371164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54571359 + ... + 54577225.

It is an arithmetic number, because the mean of its divisors is an integer number (12044304720).

Almost surely, 2^320187371164 is an apocalyptic number.

It is an amenable number.

320187371164 is a deficient number, since it is larger than the sum of its proper divisors (257939255396).

320187371164 is a wasteful number, since it uses less digits than its factorization.

320187371164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258 (or 9256 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 320187371164 in words is "three hundred twenty billion, one hundred eighty-seven million, three hundred seventy-one thousand, one hundred sixty-four".