320056660424336 has 160 divisors (see below), whose sum is σ = 692629109852160. Its totient is φ = 142048975795200.

The previous prime is 320056660424311. The next prime is 320056660424359. The reversal of 320056660424336 is 633424066650023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4328621255 + ... + 4328695193.

It is an arithmetic number, because the mean of its divisors is an integer number (4328931936576).

Almost surely, 2^{320056660424336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320056660424336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346314554926080).

320056660424336 is an abundant number, since it is smaller than the sum of its proper divisors (372572449427824).

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

320056660424336 is a wasteful number, since it uses less digits than its factorization.

320056660424336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77405 (or 77399 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 50.

The spelling of 320056660424336 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-four thousand, three hundred thirty-six".