11716565 has 8 divisors (see below), whose sum is σ = 16068480. Its totient is φ = 8034192.

The previous prime is 11716561. The next prime is 11716567. The reversal of 11716565 is 56561711.

11716565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11716565 - 2² = 11716561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11716561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167345 + ... + 167414.

It is an arithmetic number, because the mean of its divisors is an integer number (2008560).

Almost surely, 2^11716565 is an apocalyptic number.

It is an amenable number.

11716565 is a deficient number, since it is larger than the sum of its proper divisors (4351915).

11716565 is an equidigital number, since it uses as much as digits as its factorization.

11716565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334771.

The product of its digits is 6300, while the sum is 32.

The square root of 11716565 is about 3422.9468298529. The cubic root of 11716565 is about 227.1259562186.

The spelling of 11716565 in words is "eleven million, seven hundred sixteen thousand, five hundred sixty-five".