3116855507181 has 32 divisors (see below), whose sum is σ = 4549108421760. Its totient is φ = 1886515488000.

The previous prime is 3116855507179. The next prime is 3116855507203. The reversal of 3116855507181 is 1817055586113.

It is a happy number.

It is not a de Polignac number, because 3116855507181 - 2¹ = 3116855507179 is a prime.

It is a super-2 number, since 2×3116855507181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3116855507111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72630831 + ... + 72673731.

It is an arithmetic number, because the mean of its divisors is an integer number (142159638180).

Almost surely, 2^{3116855507181} is an apocalyptic number.

It is an amenable number.

3116855507181 is a deficient number, since it is larger than the sum of its proper divisors (1432252914579).

3116855507181 is a wasteful number, since it uses less digits than its factorization.

3116855507181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73517.

The product of its (nonzero) digits is 1008000, while the sum is 51.

The spelling of 3116855507181 in words is "three trillion, one hundred sixteen billion, eight hundred fifty-five million, five hundred seven thousand, one hundred eighty-one".