115601666063 has 24 divisors (see below), whose sum is σ = 129669847200. Its totient is φ = 102890196864.

The previous prime is 115601666029. The next prime is 115601666113. The reversal of 115601666063 is 360666106511.

It is not a de Polignac number, because 115601666063 - 2⁶ = 115601665999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115601666063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115601666003) 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 23 ways as a sum of consecutive naturals, for example, 3694478 + ... + 3725636.

It is an arithmetic number, because the mean of its divisors is an integer number (5402910300).

Almost surely, 2^115601666063 is an apocalyptic number.

115601666063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115601666063 is a deficient number, since it is larger than the sum of its proper divisors (14068181137).

115601666063 is a wasteful number, since it uses less digits than its factorization.

115601666063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31971 (or 31958 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 115601666063 in words is "one hundred fifteen billion, six hundred one million, six hundred sixty-six thousand, sixty-three".