11161256166 has 40 divisors (see below), whose sum is σ = 25067664864. Its totient is φ = 3711763440.

The previous prime is 11161256159. The next prime is 11161256191. The reversal of 11161256166 is 66165216111.

11161256166 is a `hidden beast` number, since 1 + 1 + 16 + 1 + 25 + 616 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11161256166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10105 + ... + 149748.

Almost surely, 2^11161256166 is an apocalyptic number.

11161256166 is an abundant number, since it is smaller than the sum of its proper divisors (13906408698).

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

11161256166 is a wasteful number, since it uses less digits than its factorization.

11161256166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160298 (or 160289 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The spelling of 11161256166 in words is "eleven billion, one hundred sixty-one million, two hundred fifty-six thousand, one hundred sixty-six".