11551565606156 has 12 divisors (see below), whose sum is σ = 20267207010960. Its totient is φ = 5760935031600.

The previous prime is 11551565606143. The next prime is 11551565606177. The reversal of 11551565606156 is 65160656515511.

11551565606156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11551565606098 and 11551565606107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711941120 + ... + 3711944231.

It is an arithmetic number, because the mean of its divisors is an integer number (1688933917580).

Almost surely, 2^{11551565606156} is an apocalyptic number.

It is an amenable number.

11551565606156 is a deficient number, since it is larger than the sum of its proper divisors (8715641404804).

11551565606156 is a wasteful number, since it uses less digits than its factorization.

11551565606156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423885744 (or 7423885742 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 53.

The spelling of 11551565606156 in words is "eleven trillion, five hundred fifty-one billion, five hundred sixty-five million, six hundred six thousand, one hundred fifty-six".