31116666038216 has 32 divisors (see below), whose sum is σ = 64303888128480. Its totient is φ = 13998125299200.

The previous prime is 31116666038201. The next prime is 31116666038221. The reversal of 31116666038216 is 61283066661113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1822664030 + ... + 1822681101.

It is an arithmetic number, because the mean of its divisors is an integer number (2009496504015).

Almost surely, 2^{31116666038216} is an apocalyptic number.

It is an amenable number.

31116666038216 is an abundant number, since it is smaller than the sum of its proper divisors (33187222090264).

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

31116666038216 is a wasteful number, since it uses less digits than its factorization.

31116666038216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645345245 (or 3645345241 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 31116666038216 in words is "thirty-one trillion, one hundred sixteen billion, six hundred sixty-six million, thirty-eight thousand, two hundred sixteen".