11663288156 has 24 divisors (see below), whose sum is σ = 21986284320. Its totient is φ = 5381716032.

The previous prime is 11663288129. The next prime is 11663288171. The reversal of 11663288156 is 65188236611.

It is a self number, because there is not a number n which added to its sum of digits gives 11663288156.

It is a congruent number.

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, 200825 + ... + 252303.

It is an arithmetic number, because the mean of its divisors is an integer number (916095180).

Almost surely, 2^11663288156 is an apocalyptic number.

It is an amenable number.

11663288156 is a deficient number, since it is larger than the sum of its proper divisors (10322996164).

11663288156 is a wasteful number, since it uses less digits than its factorization.

11663288156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55853 (or 55851 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The spelling of 11663288156 in words is "eleven billion, six hundred sixty-three million, two hundred eighty-eight thousand, one hundred fifty-six".