1115565116 has 12 divisors (see below), whose sum is σ = 1993776288. Its totient is φ = 545914752.

The previous prime is 1115565029. The next prime is 1115565151. The reversal of 1115565116 is 6115655111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966741 + ... + 2967116.

It is an arithmetic number, because the mean of its divisors is an integer number (166148024).

Almost surely, 2^1115565116 is an apocalyptic number.

It is an amenable number.

1115565116 is a deficient number, since it is larger than the sum of its proper divisors (878211172).

1115565116 is a wasteful number, since it uses less digits than its factorization.

1115565116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933908 (or 5933906 counting only the distinct ones).

The product of its digits is 4500, while the sum is 32.

The square root of 1115565116 is about 33400.0765867385. The cubic root of 1115565116 is about 1037.1262863826.

The spelling of 1115565116 in words is "one billion, one hundred fifteen million, five hundred sixty-five thousand, one hundred sixteen".