320135551552 has 28 divisors (see below), whose sum is σ = 662889378816. Its totient is φ = 153108306560.

The previous prime is 320135551537. The next prime is 320135551573. The reversal of 320135551552 is 255155531023.

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, 108740224 + ... + 108743167.

It is an arithmetic number, because the mean of its divisors is an integer number (23674620672).

Almost surely, 2^320135551552 is an apocalyptic number.

320135551552 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320135551552 is an abundant number, since it is smaller than the sum of its proper divisors (342753827264).

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

320135551552 is a wasteful number, since it uses less digits than its factorization.

320135551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217483426 (or 217483416 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 320135551552 in words is "three hundred twenty billion, one hundred thirty-five million, five hundred fifty-one thousand, five hundred fifty-two".