115615039158 has 24 divisors (see below), whose sum is σ = 252979446096. Its totient is φ = 38156778000.

The previous prime is 115615039151. The next prime is 115615039187. The reversal of 115615039158 is 851930516511.

115615039158 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 1 + 503 + 91 + 58 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615039151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31795498 + ... + 31799133.

It is an arithmetic number, because the mean of its divisors is an integer number (10540810254).

Almost surely, 2^115615039158 is an apocalyptic number.

115615039158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115615039158 is an abundant number, since it is smaller than the sum of its proper divisors (137364406938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115615039158 is a wasteful number, since it uses less digits than its factorization.

115615039158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63594740 (or 63594737 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 115615039158 in words is "one hundred fifteen billion, six hundred fifteen million, thirty-nine thousand, one hundred fifty-eight".