320271085872 has 120 divisors (see below), whose sum is σ = 899733350880. Its totient is φ = 106350520320.

The previous prime is 320271085843. The next prime is 320271085913. The reversal of 320271085872 is 278580172023.

320271085872 is a `hidden beast` number, since 32 + 0 + 27 + 10 + 8 + 587 + 2 = 666.

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, 50361829 + ... + 50368187.

It is an arithmetic number, because the mean of its divisors is an integer number (7497777924).

Almost surely, 2^320271085872 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 320271085872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449866675440).

320271085872 is an abundant number, since it is smaller than the sum of its proper divisors (579462265008).

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

320271085872 is a wasteful number, since it uses less digits than its factorization.

320271085872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651 (or 7642 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 320271085872 in words is "three hundred twenty billion, two hundred seventy-one million, eighty-five thousand, eight hundred seventy-two".