115615616166 has 40 divisors (see below), whose sum is σ = 274303723320. Its totient is φ = 36271564992.

The previous prime is 115615616161. The next prime is 115615616201. The reversal of 115615616166 is 661616516511.

115615616166 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 15 + 616 + 16 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615616161) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20987736 + ... + 20993243.

It is an arithmetic number, because the mean of its divisors is an integer number (6857593083).

Almost surely, 2^115615616166 is an apocalyptic number.

115615616166 is an abundant number, since it is smaller than the sum of its proper divisors (158688107154).

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

115615616166 is a wasteful number, since it uses less digits than its factorization.

115615616166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41981010 (or 41981001 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The spelling of 115615616166 in words is "one hundred fifteen billion, six hundred fifteen million, six hundred sixteen thousand, one hundred sixty-six".