320235646164 has 24 divisors (see below), whose sum is σ = 853961723328. Its totient is φ = 91495898880.

The previous prime is 320235646147. The next prime is 320235646177. The reversal of 320235646164 is 461646532023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1906164477 + ... + 1906164644.

It is an arithmetic number, because the mean of its divisors is an integer number (35581738472).

Almost surely, 2^320235646164 is an apocalyptic number.

It is an amenable number.

320235646164 is an abundant number, since it is smaller than the sum of its proper divisors (533726077164).

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

320235646164 is a wasteful number, since it uses less digits than its factorization.

320235646164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812329135 (or 3812329133 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 320235646164 in words is "three hundred twenty billion, two hundred thirty-five million, six hundred forty-six thousand, one hundred sixty-four".