11181627665 has 16 divisors (see below), whose sum is σ = 14466041856. Its totient is φ = 8248094400.

The previous prime is 11181627601. The next prime is 11181627727. The reversal of 11181627665 is 56672618111.

It is not a de Polignac number, because 11181627665 - 2⁶ = 11181627601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35201 + ... + 153630.

It is an arithmetic number, because the mean of its divisors is an integer number (904127616).

Almost surely, 2^11181627665 is an apocalyptic number.

It is an amenable number.

11181627665 is a deficient number, since it is larger than the sum of its proper divisors (3284414191).

11181627665 is a wasteful number, since it uses less digits than its factorization.

11181627665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189760.

The product of its digits is 120960, while the sum is 44.

The spelling of 11181627665 in words is "eleven billion, one hundred eighty-one million, six hundred twenty-seven thousand, six hundred sixty-five".