11156166 has 48 divisors (see below), whose sum is σ = 28383264. Its totient is φ = 3100032.

The previous prime is 11156161. The next prime is 11156177. The reversal of 11156166 is 66165111.

11156166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3466 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (591318).

Almost surely, 2^11156166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11156166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14191632).

11156166 is an abundant number, since it is smaller than the sum of its proper divisors (17227098).

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

11156166 is a wasteful number, since it uses less digits than its factorization.

11156166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2442 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 11156166 is about 3340.0847294642. The cubic root of 11156166 is about 223.4455222086.

The spelling of 11156166 in words is "eleven million, one hundred fifty-six thousand, one hundred sixty-six".