11716872157 has 4 divisors (see below), whose sum is σ = 11989357600. Its totient is φ = 11444386716.

The previous prime is 11716872151. The next prime is 11716872203. The reversal of 11716872157 is 75127861711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11716872157 - 2³ = 11716872149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11716872151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136242657 + ... + 136242742.

It is an arithmetic number, because the mean of its divisors is an integer number (2997339400).

Almost surely, 2^11716872157 is an apocalyptic number.

It is an amenable number.

11716872157 is a deficient number, since it is larger than the sum of its proper divisors (272485443).

11716872157 is an equidigital number, since it uses as much as digits as its factorization.

11716872157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272485442.

The product of its digits is 164640, while the sum is 46.

The spelling of 11716872157 in words is "eleven billion, seven hundred sixteen million, eight hundred seventy-two thousand, one hundred fifty-seven".