1115665816115 has 32 divisors (see below), whose sum is σ = 1356294499200. Its totient is φ = 880959366144.

The previous prime is 1115665816093. The next prime is 1115665816163. The reversal of 1115665816115 is 5116185665111.

It is a cyclic number.

It is not a de Polignac number, because 1115665816115 - 2⁶ = 1115665816051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1115665816115.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102002927 + ... + 102013863.

It is an arithmetic number, because the mean of its divisors is an integer number (42384203100).

Almost surely, 2^{1115665816115} is an apocalyptic number.

1115665816115 is a deficient number, since it is larger than the sum of its proper divisors (240628683085).

1115665816115 is a wasteful number, since it uses less digits than its factorization.

1115665816115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951.

The product of its digits is 216000, while the sum is 47.

The spelling of 1115665816115 in words is "one trillion, one hundred fifteen billion, six hundred sixty-five million, eight hundred sixteen thousand, one hundred fifteen".