115161556155 has 32 divisors (see below), whose sum is σ = 185430435840. Its totient is φ = 61029260160.

The previous prime is 115161556129. The next prime is 115161556157. The reversal of 115161556155 is 551655161511.

It is not a de Polignac number, because 115161556155 - 2⁶ = 115161556091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115161556157) 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 31 ways as a sum of consecutive naturals, for example, 4843386 + ... + 4867104.

It is an arithmetic number, because the mean of its divisors is an integer number (5794701120).

Almost surely, 2^115161556155 is an apocalyptic number.

115161556155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115161556155 is a deficient number, since it is larger than the sum of its proper divisors (70268879685).

115161556155 is a wasteful number, since it uses less digits than its factorization.

115161556155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25771.

The product of its digits is 112500, while the sum is 42.

The spelling of 115161556155 in words is "one hundred fifteen billion, one hundred sixty-one million, five hundred fifty-six thousand, one hundred fifty-five".