115116561161 has 8 divisors (see below), whose sum is σ = 132508272960. Its totient is φ = 97961471568.

The previous prime is 115116561137. The next prime is 115116561181. The reversal of 115116561161 is 161165611511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115116561161 - 2²² = 115112366857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115116561101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59154506 + ... + 59156451.

It is an arithmetic number, because the mean of its divisors is an integer number (16563534120).

Almost surely, 2^115116561161 is an apocalyptic number.

It is an amenable number.

115116561161 is a deficient number, since it is larger than the sum of its proper divisors (17391711799).

115116561161 is a wasteful number, since it uses less digits than its factorization.

115116561161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118311103.

The product of its digits is 5400, while the sum is 35.

The spelling of 115116561161 in words is "one hundred fifteen billion, one hundred sixteen million, five hundred sixty-one thousand, one hundred sixty-one".