328166625920 has 192 divisors, whose sum is σ = 960642568800. Its totient is φ = 106592274432.

The previous prime is 328166625911. The next prime is 328166625959. The reversal of 328166625920 is 29526661823.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320459 + ... + 871221.

Almost surely, 2^328166625920 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 328166625920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480321284400).

328166625920 is an abundant number, since it is smaller than the sum of its proper divisors (632475942880).

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

328166625920 is a wasteful number, since it uses less digits than its factorization.

328166625920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550815 (or 550796 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 328166625920 in words is "three hundred twenty-eight billion, one hundred sixty-six million, six hundred twenty-five thousand, nine hundred twenty".