11717656657 has 8 divisors (see below), whose sum is σ = 14179349376. Its totient is φ = 9452899392.

The previous prime is 11717656627. The next prime is 11717656663. The reversal of 11717656657 is 75665671711.

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 11717656657 - 2⁷ = 11717656529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11717656627) 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, 49233733 + ... + 49233970.

It is an arithmetic number, because the mean of its divisors is an integer number (1772418672).

Almost surely, 2^11717656657 is an apocalyptic number.

11717656657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11717656657 is a deficient number, since it is larger than the sum of its proper divisors (2461692719).

11717656657 is an equidigital number, since it uses as much as digits as its factorization.

11717656657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98467727.

The product of its digits is 1852200, while the sum is 52.

The spelling of 11717656657 in words is "eleven billion, seven hundred seventeen million, six hundred fifty-six thousand, six hundred fifty-seven".