331959795921601 has 16 divisors (see below), whose sum is σ = 349152624737280. Its totient is φ = 315000456336720.

The previous prime is 331959795921557. The next prime is 331959795921661. The reversal of 331959795921601 is 106129597959133.

It is not a de Polignac number, because 331959795921601 - 2³⁷ = 331822356968129 is a prime.

It is a super-2 number, since 2×331959795921601² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331959795921661) 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, 35678815 + ... + 44010196.

It is an arithmetic number, because the mean of its divisors is an integer number (21822039046080).

Almost surely, 2^{331959795921601} is an apocalyptic number.

It is an amenable number.

331959795921601 is a deficient number, since it is larger than the sum of its proper divisors (17192828815679).

331959795921601 is a wasteful number, since it uses less digits than its factorization.

331959795921601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79690476.

The product of its (nonzero) digits is 124002900, while the sum is 70.

The spelling of 331959795921601 in words is "three hundred thirty-one trillion, nine hundred fifty-nine billion, seven hundred ninety-five million, nine hundred twenty-one thousand, six hundred one".