11166556 has 6 divisors (see below), whose sum is σ = 19541480. Its totient is φ = 5583276.

The previous prime is 11166503. The next prime is 11166559. The reversal of 11166556 is 65566111.

11166556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11166556² = 249383945802272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395816 + ... + 1395823.

Almost surely, 2^11166556 is an apocalyptic number.

It is an amenable number.

11166556 is a deficient number, since it is larger than the sum of its proper divisors (8374924).

11166556 is a wasteful number, since it uses less digits than its factorization.

11166556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791643 (or 2791641 counting only the distinct ones).

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

The square root of 11166556 is about 3341.6397172646. The cubic root of 11166556 is about 223.5148673769.

The spelling of 11166556 in words is "eleven million, one hundred sixty-six thousand, five hundred fifty-six".