115589161989 has 48 divisors (see below), whose sum is σ = 192322341120. Its totient is φ = 65529907200.

The previous prime is 115589161907. The next prime is 115589161999. The reversal of 115589161989 is 989161985511.

115589161989 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 8 + 9 + 1 + 619 + 8 + 9 = 666.

It is not a de Polignac number, because 115589161989 - 2¹¹ = 115589159941 is a prime.

It is a super-2 number, since 2×115589161989² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115589161999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7878949 + ... + 7893605.

It is an arithmetic number, because the mean of its divisors is an integer number (4006715440).

Almost surely, 2^115589161989 is an apocalyptic number.

It is an amenable number.

115589161989 is a deficient number, since it is larger than the sum of its proper divisors (76733179131).

115589161989 is a wasteful number, since it uses less digits than its factorization.

115589161989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15650 (or 15647 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 63.

The spelling of 115589161989 in words is "one hundred fifteen billion, five hundred eighty-nine million, one hundred sixty-one thousand, nine hundred eighty-nine".