11239885065 has 32 divisors (see below), whose sum is σ = 18772321536. Its totient is φ = 5731953920.

The previous prime is 11239885039. The next prime is 11239885073. The reversal of 11239885065 is 56058893211.

It is a happy number.

It is not a de Polignac number, because 11239885065 - 2⁸ = 11239884809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1803655 + ... + 1809875.

It is an arithmetic number, because the mean of its divisors is an integer number (586635048).

Almost surely, 2^11239885065 is an apocalyptic number.

11239885065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11239885065 is a deficient number, since it is larger than the sum of its proper divisors (7532436471).

11239885065 is a wasteful number, since it uses less digits than its factorization.

11239885065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11489.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 11239885065 in words is "eleven billion, two hundred thirty-nine million, eight hundred eighty-five thousand, sixty-five".