115555579975 has 48 divisors (see below), whose sum is σ = 157342116960. Its totient is φ = 83489587200.

The previous prime is 115555579961. The next prime is 115555579981. The reversal of 115555579975 is 579975555511.

It is not a de Polignac number, because 115555579975 - 2⁹ = 115555579463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64591381 + ... + 64593169.

It is an arithmetic number, because the mean of its divisors is an integer number (3277960770).

Almost surely, 2^115555579975 is an apocalyptic number.

115555579975 is a deficient number, since it is larger than the sum of its proper divisors (41786536985).

115555579975 is a wasteful number, since it uses less digits than its factorization.

115555579975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3215 counting only the distinct ones).

The product of its digits is 62015625, while the sum is 64.

The spelling of 115555579975 in words is "one hundred fifteen billion, five hundred fifty-five million, five hundred seventy-nine thousand, nine hundred seventy-five".