115170315855129 has 24 divisors (see below), whose sum is σ = 173189712900360. Its totient is φ = 73660434801408.

The previous prime is 115170315855103. The next prime is 115170315855143. The reversal of 115170315855129 is 921558513071511.

115170315855129 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 7 + 0 + 3 + 1 + 585 + 51 + 2 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1371772685529 + 113798543169600 = 1171227^2 + 10667640^2 .

It is not a de Polignac number, because 115170315855129 - 2⁸ = 115170315854873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115170315855149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405263412 + ... + 1405345365.

It is an arithmetic number, because the mean of its divisors is an integer number (7216238037515).

Almost surely, 2^{115170315855129} is an apocalyptic number.

It is an amenable number.

115170315855129 is a deficient number, since it is larger than the sum of its proper divisors (58019397045231).

115170315855129 is a wasteful number, since it uses less digits than its factorization.

115170315855129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810608969 (or 2810608966 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 54.

The spelling of 115170315855129 in words is "one hundred fifteen trillion, one hundred seventy billion, three hundred fifteen million, eight hundred fifty-five thousand, one hundred twenty-nine".