1115163516 has 24 divisors (see below), whose sum is σ = 2603618640. Its totient is φ = 371496832.

The previous prime is 1115163493. The next prime is 1115163521. The reversal of 1115163516 is 6153615111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6681 + ... + 47696.

It is an arithmetic number, because the mean of its divisors is an integer number (108484110).

Almost surely, 2^1115163516 is an apocalyptic number.

It is an amenable number.

1115163516 is an abundant number, since it is smaller than the sum of its proper divisors (1488455124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115163516 is a wasteful number, since it uses less digits than its factorization.

1115163516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56093 (or 56091 counting only the distinct ones).

The product of its digits is 2700, while the sum is 30.

The square root of 1115163516 is about 33394.0640833068. The cubic root of 1115163516 is about 1037.0018173575.

Adding to 1115163516 its reverse (6153615111), we get a palindrome (7268778627).

The spelling of 1115163516 in words is "one billion, one hundred fifteen million, one hundred sixty-three thousand, five hundred sixteen".