115044112161 has 20 divisors (see below), whose sum is σ = 187479295344. Its totient is φ = 69723703800.

The previous prime is 115044112147. The next prime is 115044112171. The reversal of 115044112161 is 161211440511.

It is a happy number.

115044112161 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 441 + 1 + 216 + 1 = 666.

It is not a de Polignac number, because 115044112161 - 2²³ = 115035723553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115044112171) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64558095 + ... + 64559876.

Almost surely, 2^115044112161 is an apocalyptic number.

115044112161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115044112161 is a deficient number, since it is larger than the sum of its proper divisors (72435183183).

115044112161 is a wasteful number, since it uses less digits than its factorization.

115044112161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129117994 (or 129117985 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 115044112161 its reverse (161211440511), we get a palindrome (276255552672).

The spelling of 115044112161 in words is "one hundred fifteen billion, forty-four million, one hundred twelve thousand, one hundred sixty-one".