320111879600 has 30 divisors (see below), whose sum is σ = 769068791700. Its totient is φ = 128044751680.

The previous prime is 320111879599. The next prime is 320111879609. The reversal of 320111879600 is 6978111023.

It is a super-2 number, since 2×320111879600² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320111879609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400139450 + ... + 400140249.

It is an arithmetic number, because the mean of its divisors is an integer number (25635626390).

Almost surely, 2^320111879600 is an apocalyptic number.

It is an amenable number.

320111879600 is an abundant number, since it is smaller than the sum of its proper divisors (448956912100).

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

320111879600 is a wasteful number, since it uses less digits than its factorization.

320111879600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800279717 (or 800279706 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 320111879600 in words is "three hundred twenty billion, one hundred eleven million, eight hundred seventy-nine thousand, six hundred".