331145532780 has 96 divisors (see below), whose sum is σ = 975139651584. Its totient is φ = 83800975104.

The previous prime is 331145532763. The next prime is 331145532793. The reversal of 331145532780 is 87235541133.

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, 769467 + ... + 1119986.

It is an arithmetic number, because the mean of its divisors is an integer number (10157704704).

Almost surely, 2^331145532780 is an apocalyptic number.

331145532780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331145532780 is an abundant number, since it is smaller than the sum of its proper divisors (643994118804).

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

331145532780 is a wasteful number, since it uses less digits than its factorization.

331145532780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889615 (or 1889613 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 331145532780 in words is "three hundred thirty-one billion, one hundred forty-five million, five hundred thirty-two thousand, seven hundred eighty".