320165136506144 has 24 divisors (see below), whose sum is σ = 631305400425840. Its totient is φ = 159833606239296.

The previous prime is 320165136505939. The next prime is 320165136506153. The reversal of 320165136506144 is 441605631561023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7780042034 + ... + 7780083185.

It is an arithmetic number, because the mean of its divisors is an integer number (26304391684410).

Almost surely, 2^{320165136506144} is an apocalyptic number.

It is an amenable number.

320165136506144 is a deficient number, since it is larger than the sum of its proper divisors (311140263919696).

320165136506144 is a wasteful number, since it uses less digits than its factorization.

320165136506144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15560125872 (or 15560125864 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 320165136506144 in words is "three hundred twenty trillion, one hundred sixty-five billion, one hundred thirty-six million, five hundred six thousand, one hundred forty-four".