320523516216 has 48 divisors (see below), whose sum is σ = 869207681160. Its totient is φ = 106702937280.

The previous prime is 320523516179. The next prime is 320523516317. The reversal of 320523516216 is 612615325023.

320523516216 is a `hidden beast` number, since 3 + 2 + 0 + 5 + 23 + 5 + 1 + 621 + 6 = 666.

320523516216 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2823850 + ... + 2935161.

Almost surely, 2^320523516216 is an apocalyptic number.

320523516216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320523516216 is an abundant number, since it is smaller than the sum of its proper divisors (548684164944).

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

320523516216 is a wasteful number, since it uses less digits than its factorization.

320523516216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759796 (or 5759789 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 320523516216 in words is "three hundred twenty billion, five hundred twenty-three million, five hundred sixteen thousand, two hundred sixteen".