11717516775 has 12 divisors (see below), whose sum is σ = 19372961192. Its totient is φ = 6249342240.

The previous prime is 11717516743. The next prime is 11717516801. The reversal of 11717516775 is 57761571711.

It is not a de Polignac number, because 11717516775 - 2⁵ = 11717516743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78116704 + ... + 78116853.

Almost surely, 2^11717516775 is an apocalyptic number.

11717516775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11717516775 is a deficient number, since it is larger than the sum of its proper divisors (7655444417).

11717516775 is a wasteful number, since it uses less digits than its factorization.

11717516775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156233570 (or 156233565 counting only the distinct ones).

The product of its digits is 360150, while the sum is 48.

The spelling of 11717516775 in words is "eleven billion, seven hundred seventeen million, five hundred sixteen thousand, seven hundred seventy-five".