11609979178680 has 160 divisors (see below), whose sum is σ = 41076242341200. Its totient is φ = 2933047355904.

The previous prime is 11609979178673. The next prime is 11609979178717. The reversal of 11609979178680 is 8687197990611.

11609979178680 is a `hidden beast` number, since 1 + 1 + 609 + 9 + 7 + 9 + 1 + 7 + 8 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 11609979178599 and 11609979178608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 94236517 + ... + 94359636.

Almost surely, 2^{11609979178680} is an apocalyptic number.

11609979178680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11609979178680 is an abundant number, since it is smaller than the sum of its proper divisors (29466263162520).

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

11609979178680 is a wasteful number, since it uses less digits than its factorization.

11609979178680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188596195 (or 188596182 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 72.

The spelling of 11609979178680 in words is "eleven trillion, six hundred nine billion, nine hundred seventy-nine million, one hundred seventy-eight thousand, six hundred eighty".