115601665998 has 32 divisors (see below), whose sum is σ = 284557948416. Its totient is φ = 30488351328.

The previous prime is 115601665973. The next prime is 115601665999. The reversal of 115601665998 is 899566106511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115601665999) 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 15 ways as a sum of consecutive naturals, for example, 105861786 + ... + 105862877.

It is an arithmetic number, because the mean of its divisors is an integer number (8892435888).

Almost surely, 2^115601665998 is an apocalyptic number.

115601665998 is an abundant number, since it is smaller than the sum of its proper divisors (168956282418).

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

115601665998 is a wasteful number, since it uses less digits than its factorization.

115601665998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211724688.

The product of its (nonzero) digits is 3499200, while the sum is 57.

The spelling of 115601665998 in words is "one hundred fifteen billion, six hundred one million, six hundred sixty-five thousand, nine hundred ninety-eight".