320263413530456 has 32 divisors (see below), whose sum is σ = 655086303798480. Its totient is φ = 145573823577600.

The previous prime is 320263413530443. The next prime is 320263413530479. The reversal of 320263413530456 is 654035314362023.

It is a self number, because there is not a number n which added to its sum of digits gives 320263413530456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23447996 + ... + 34501236.

Almost surely, 2^{320263413530456} is an apocalyptic number.

It is an amenable number.

320263413530456 is an abundant number, since it is smaller than the sum of its proper divisors (334822890268024).

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

320263413530456 is a wasteful number, since it uses less digits than its factorization.

320263413530456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382515 (or 11382511 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 47.

Adding to 320263413530456 its reverse (654035314362023), we get a palindrome (974298727892479).

The spelling of 320263413530456 in words is "three hundred twenty trillion, two hundred sixty-three billion, four hundred thirteen million, five hundred thirty thousand, four hundred fifty-six".