331066720896 has 128 divisors (see below), whose sum is σ = 916364491200. Its totient is φ = 105771982848.

The previous prime is 331066720879. The next prime is 331066720903. The reversal of 331066720896 is 698027660133.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417131 + ... + 1634133.

Almost surely, 2^331066720896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331066720896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458182245600).

331066720896 is an abundant number, since it is smaller than the sum of its proper divisors (585297770304).

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

331066720896 is a wasteful number, since it uses less digits than its factorization.

331066720896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217186 (or 217174 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 331066720896 in words is "three hundred thirty-one billion, sixty-six million, seven hundred twenty thousand, eight hundred ninety-six".