115706880018 has 24 divisors (see below), whose sum is σ = 250726652748. Its totient is φ = 38564588832.

The previous prime is 115706880007. The next prime is 115706880019. The reversal of 115706880018 is 810088607511.

115706880018 is a `hidden beast` number, since 1 + 1 + 570 + 68 + 8 + 0 + 0 + 18 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101045787129 + 14661092889 = 317877^2 + 121083^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115706880019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199005 + ... + 520592.

Almost surely, 2^115706880018 is an apocalyptic number.

115706880018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115706880018 is an abundant number, since it is smaller than the sum of its proper divisors (135019772730).

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

115706880018 is a wasteful number, since it uses less digits than its factorization.

115706880018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728538 (or 728535 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 115706880018 in words is "one hundred fifteen billion, seven hundred six million, eight hundred eighty thousand, eighteen".