11556166 has 8 divisors (see below), whose sum is σ = 18087984. Its totient is φ = 5526840.

The previous prime is 11556157. The next prime is 11556169. The reversal of 11556166 is 66165511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11556169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125565 + ... + 125656.

It is an arithmetic number, because the mean of its divisors is an integer number (2260998).

Almost surely, 2^11556166 is an apocalyptic number.

11556166 is a deficient number, since it is larger than the sum of its proper divisors (6531818).

11556166 is a wasteful number, since it uses less digits than its factorization.

11556166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251246.

The product of its digits is 5400, while the sum is 31.

The square root of 11556166 is about 3399.4361297133. The cubic root of 11556166 is about 226.0847438479.

The spelling of 11556166 in words is "eleven million, five hundred fifty-six thousand, one hundred sixty-six".