1115616659 has 2 divisors, whose sum is σ = 1115616660. Its totient is φ = 1115616658.

The previous prime is 1115616589. The next prime is 1115616701. The reversal of 1115616659 is 9566165111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115616659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115616059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557808329 + 557808330.

It is an arithmetic number, because the mean of its divisors is an integer number (557808330).

Almost surely, 2^1115616659 is an apocalyptic number.

1115616659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115616659 is an equidigital number, since it uses as much as digits as its factorization.

1115616659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 41.

The square root of 1115616659 is about 33400.8481778532. The cubic root of 1115616659 is about 1037.1422590874.

The spelling of 1115616659 in words is "one billion, one hundred fifteen million, six hundred sixteen thousand, six hundred fifty-nine".