115611015001161 has 16 divisors (see below), whose sum is σ = 162263286331200. Its totient is φ = 73016487468288.

The previous prime is 115611015001159. The next prime is 115611015001169. The reversal of 115611015001161 is 161100510116511.

It is a happy number.

It is not a de Polignac number, because 115611015001161 - 2¹ = 115611015001159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115611015001169) 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, 9601116 + ... + 17983421.

It is an arithmetic number, because the mean of its divisors is an integer number (10141455395700).

Almost surely, 2^{115611015001161} is an apocalyptic number.

It is an amenable number.

115611015001161 is a deficient number, since it is larger than the sum of its proper divisors (46652271330039).

115611015001161 is a wasteful number, since it uses less digits than its factorization.

115611015001161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27658088.

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

Adding to 115611015001161 its reverse (161100510116511), we get a palindrome (276711525117672).

The spelling of 115611015001161 in words is "one hundred fifteen trillion, six hundred eleven billion, fifteen million, one thousand, one hundred sixty-one".