115516650566015 has 4 divisors (see below), whose sum is σ = 138619980679224. Its totient is φ = 92413320452808.

The previous prime is 115516650565997. The next prime is 115516650566017. The reversal of 115516650566015 is 510665056615511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115516650566015 - 2¹² = 115516650561919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115516650566017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11551665056597 + ... + 11551665056606.

It is an arithmetic number, because the mean of its divisors is an integer number (34654995169806).

Almost surely, 2^{115516650566015} is an apocalyptic number.

115516650566015 is a deficient number, since it is larger than the sum of its proper divisors (23103330113209).

115516650566015 is an equidigital number, since it uses as much as digits as its factorization.

115516650566015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23103330113208.

The product of its (nonzero) digits is 4050000, while the sum is 53.

The spelling of 115516650566015 in words is "one hundred fifteen trillion, five hundred sixteen billion, six hundred fifty million, five hundred sixty-six thousand, fifteen".