115616111657 has 8 divisors (see below), whose sum is σ = 117806378184. Its totient is φ = 113426172288.

The previous prime is 115616111647. The next prime is 115616111719. The reversal of 115616111657 is 756111616511.

It can be written as a sum of positive squares in 4 ways, for example, as 20848183321 + 94767928336 = 144389^2 + 307844^2 .

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 115616111657 - 2⁴ = 115616111641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115616111647) 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 7 ways as a sum of consecutive naturals, for example, 702173 + ... + 851045.

It is an arithmetic number, because the mean of its divisors is an integer number (14725797273).

Almost surely, 2^115616111657 is an apocalyptic number.

It is an amenable number.

115616111657 is a deficient number, since it is larger than the sum of its proper divisors (2190266527).

115616111657 is a wasteful number, since it uses less digits than its factorization.

115616111657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163579.

The product of its digits is 37800, while the sum is 41.

The spelling of 115616111657 in words is "one hundred fifteen billion, six hundred sixteen million, one hundred eleven thousand, six hundred fifty-seven".