320240057172 has 24 divisors (see below), whose sum is σ = 853973486016. Its totient is φ = 91497159168.

The previous prime is 320240057171. The next prime is 320240057177. The reversal of 320240057172 is 271750042023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320240057171) 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, 1906190733 + ... + 1906190900.

It is an arithmetic number, because the mean of its divisors is an integer number (35582228584).

Almost surely, 2^320240057172 is an apocalyptic number.

It is an amenable number.

320240057172 is an abundant number, since it is smaller than the sum of its proper divisors (533733428844).

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

320240057172 is a wasteful number, since it uses less digits than its factorization.

320240057172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812381647 (or 3812381645 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

Adding to 320240057172 its reverse (271750042023), we get a palindrome (591990099195).

The spelling of 320240057172 in words is "three hundred twenty billion, two hundred forty million, fifty-seven thousand, one hundred seventy-two".