331100156044 has 48 divisors (see below), whose sum is σ = 665740373760. Its totient is φ = 141141873600.

The previous prime is 331100156041. The next prime is 331100156053. The reversal of 331100156044 is 440651001133.

It is a super-2 number, since 2×331100156044² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (331100156041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32268987 + ... + 32279245.

It is an arithmetic number, because the mean of its divisors is an integer number (13869591120).

Almost surely, 2^331100156044 is an apocalyptic number.

It is an amenable number.

331100156044 is an abundant number, since it is smaller than the sum of its proper divisors (334640217716).

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

331100156044 is a wasteful number, since it uses less digits than its factorization.

331100156044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16318 (or 16316 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 331100156044 its reverse (440651001133), we get a palindrome (771751157177).

The spelling of 331100156044 in words is "three hundred thirty-one billion, one hundred million, one hundred fifty-six thousand, forty-four".