331881145680 has 160 divisors (see below), whose sum is σ = 1237692211200. Its totient is φ = 71865985536.

The previous prime is 331881145663. The next prime is 331881145691. The reversal of 331881145680 is 86541188133.

It is a super-2 number, since 2×331881145680² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent 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, 5166720 + ... + 5230559.

It is an arithmetic number, because the mean of its divisors is an integer number (7735576320).

Almost surely, 2^331881145680 is an apocalyptic number.

331881145680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331881145680 is an abundant number, since it is smaller than the sum of its proper divisors (905811065520).

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

331881145680 is a wasteful number, since it uses less digits than its factorization.

331881145680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397321 (or 10397315 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 331881145680 in words is "three hundred thirty-one billion, eight hundred eighty-one million, one hundred forty-five thousand, six hundred eighty".