1115656663 has 6 divisors (see below), whose sum is σ = 1226300432. Its totient is φ = 1014233220.

The previous prime is 1115656657. The next prime is 1115656681. The reversal of 1115656663 is 3666565111.

It is not a de Polignac number, because 1115656663 - 2⁵ = 1115656631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115656643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4610031 + ... + 4610272.

Almost surely, 2^1115656663 is an apocalyptic number.

1115656663 is a deficient number, since it is larger than the sum of its proper divisors (110643769).

1115656663 is an equidigital number, since it uses as much as digits as its factorization.

1115656663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220325 (or 9220314 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 1115656663 is about 33401.4470195529. The cubic root of 1115656663 is about 1037.1546556225.

The spelling of 1115656663 in words is "one billion, one hundred fifteen million, six hundred fifty-six thousand, six hundred sixty-three".