115116511161 has 16 divisors (see below), whose sum is σ = 156134528000. Its totient is φ = 75426637968.

The previous prime is 115116511099. The next prime is 115116511187. The reversal of 115116511161 is 161115611511.

It is a happy number.

It is not a de Polignac number, because 115116511161 - 2¹⁰ = 115116510137 is a prime.

It is a super-2 number, since 2×115116511161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115116511061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564061 + ... + 740538.

It is an arithmetic number, because the mean of its divisors is an integer number (9758408000).

Almost surely, 2^115116511161 is an apocalyptic number.

It is an amenable number.

115116511161 is a deficient number, since it is larger than the sum of its proper divisors (41018016839).

115116511161 is a wasteful number, since it uses less digits than its factorization.

115116511161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305108.

The product of its digits is 900, while the sum is 30.

The spelling of 115116511161 in words is "one hundred fifteen billion, one hundred sixteen million, five hundred eleven thousand, one hundred sixty-one".