115718663 has 4 divisors (see below), whose sum is σ = 117902088. Its totient is φ = 113535240.

The previous prime is 115718657. The next prime is 115718693. The reversal of 115718663 is 366817511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115718663 - 2¹⁸ = 115456519 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 (115718623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091633 + ... + 1091738.

It is an arithmetic number, because the mean of its divisors is an integer number (29475522).

Almost surely, 2^115718663 is an apocalyptic number.

115718663 is a deficient number, since it is larger than the sum of its proper divisors (2183425).

115718663 is an equidigital number, since it uses as much as digits as its factorization.

115718663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183424.

The product of its digits is 30240, while the sum is 38.

The square root of 115718663 is about 10757.2609431955. The cubic root of 115718663 is about 487.3053009930.

The spelling of 115718663 in words is "one hundred fifteen million, seven hundred eighteen thousand, six hundred sixty-three".