11716721576608 has 48 divisors (see below), whose sum is σ = 24189606299880. Its totient is φ = 5578864091136.

The previous prime is 11716721576587. The next prime is 11716721576617. The reversal of 11716721576608 is 80667512761711.

It can be written as a sum of positive squares in 4 ways, for example, as 11698233191824 + 18488384784 = 3420268^2 + 135972^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86410185 + ... + 86545672.

Almost surely, 2^{11716721576608} is an apocalyptic number.

It is an amenable number.

11716721576608 is an abundant number, since it is smaller than the sum of its proper divisors (12472884723272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11716721576608 is a wasteful number, since it uses less digits than its factorization.

11716721576608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172955969 (or 172955961 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 11716721576608 in words is "eleven trillion, seven hundred sixteen billion, seven hundred twenty-one million, five hundred seventy-six thousand, six hundred eight".