115155115161165 has 48 divisors (see below), whose sum is σ = 199873315219968. Its totient is φ = 61332695849088.

The previous prime is 115155115161137. The next prime is 115155115161167. The reversal of 115155115161165 is 561161511551511.

115155115161165 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 5 + 5 + 11 + 516 + 116 + 5 = 666.

It is not a de Polignac number, because 115155115161165 - 2⁵ = 115155115161133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115155115161165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115155115161167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100909902 + ... + 102044688.

It is an arithmetic number, because the mean of its divisors is an integer number (4164027400416).

Almost surely, 2^{115155115161165} is an apocalyptic number.

115155115161165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115155115161165 is a deficient number, since it is larger than the sum of its proper divisors (84718200058803).

115155115161165 is a wasteful number, since it uses less digits than its factorization.

115155115161165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137858 (or 1137855 counting only the distinct ones).

The product of its digits is 112500, while the sum is 45.

The spelling of 115155115161165 in words is "one hundred fifteen trillion, one hundred fifty-five billion, one hundred fifteen million, one hundred sixty-one thousand, one hundred sixty-five".