113666565 has 8 divisors (see below), whose sum is σ = 181866528. Its totient is φ = 60622160.

The previous prime is 113666557. The next prime is 113666599. The reversal of 113666565 is 565666311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113666565 - 2³ = 113666557 is a prime.

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, 3788871 + ... + 3788900.

It is an arithmetic number, because the mean of its divisors is an integer number (22733316).

Almost surely, 2^113666565 is an apocalyptic number.

113666565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113666565 is a deficient number, since it is larger than the sum of its proper divisors (68199963).

113666565 is an equidigital number, since it uses as much as digits as its factorization.

113666565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577779.

The product of its digits is 97200, while the sum is 39.

The square root of 113666565 is about 10661.4522931916. The cubic root of 113666565 is about 484.4075594624.

The spelling of 113666565 in words is "one hundred thirteen million, six hundred sixty-six thousand, five hundred sixty-five".