331035426650664 has 40 divisors (see below), whose sum is σ = 927205708907610. Its totient is φ = 110345142216672.

The previous prime is 331035426650597. The next prime is 331035426650693. The reversal of 331035426650664 is 466056624530133.

331035426650664 is a `hidden beast` number, since 3 + 3 + 1 + 0 + 3 + 54 + 26 + 6 + 506 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 227855704112100 + 103179722538564 = 15094890^2 + 10157742^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 331035426650664.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 255428569299 + ... + 255428570594.

Almost surely, 2^{331035426650664} is an apocalyptic number.

It is an amenable number.

331035426650664 is an abundant number, since it is smaller than the sum of its proper divisors (596170282256946).

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

331035426650664 is a wasteful number, since it uses less digits than its factorization.

331035426650664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510857139911 (or 510857139898 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

The spelling of 331035426650664 in words is "three hundred thirty-one trillion, thirty-five billion, four hundred twenty-six million, six hundred fifty thousand, six hundred sixty-four".