915565112163 has 32 divisors (see below), whose sum is σ = 1460797826880. Its totient is φ = 563398778880.

The previous prime is 915565112131. The next prime is 915565112179. The reversal of 915565112163 is 361211565519.

915565112163 is a `hidden beast` number, since 9 + 1 + 5 + 56 + 511 + 21 + 63 = 666.

It is not a de Polignac number, because 915565112163 - 2⁵ = 915565112131 is a prime.

It is a super-2 number, since 2×915565112163² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (915565112963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9972195 + ... + 10063587.

It is an arithmetic number, because the mean of its divisors is an integer number (45649932090).

Almost surely, 2^915565112163 is an apocalyptic number.

915565112163 is a deficient number, since it is larger than the sum of its proper divisors (545232714717).

915565112163 is a wasteful number, since it uses less digits than its factorization.

915565112163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119956 (or 119950 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The spelling of 915565112163 in words is "nine hundred fifteen billion, five hundred sixty-five million, one hundred twelve thousand, one hundred sixty-three".