115665016611 has 32 divisors (see below), whose sum is σ = 158716551168. Its totient is φ = 74899147680.

The previous prime is 115665016591. The next prime is 115665016613. The reversal of 115665016611 is 116610566511.

It is not a de Polignac number, because 115665016611 - 2²⁵ = 115631462179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115665016611.

It is not an unprimeable number, because it can be changed into a prime (115665016613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6479280 + ... + 6497106.

It is an arithmetic number, because the mean of its divisors is an integer number (4959892224).

Almost surely, 2^115665016611 is an apocalyptic number.

115665016611 is a deficient number, since it is larger than the sum of its proper divisors (43051534557).

115665016611 is a wasteful number, since it uses less digits than its factorization.

115665016611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 115665016611 in words is "one hundred fifteen billion, six hundred sixty-five million, sixteen thousand, six hundred eleven".