11066556 has 48 divisors (see below), whose sum is σ = 26869248. Its totient is φ = 3542400.

The previous prime is 11066543. The next prime is 11066563. The reversal of 11066556 is 65566011.

It is a super-2 number, since 2×11066556² = 244937323402272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40701 + ... + 40971.

It is an arithmetic number, because the mean of its divisors is an integer number (559776).

Almost surely, 2^11066556 is an apocalyptic number.

It is an amenable number.

11066556 is an abundant number, since it is smaller than the sum of its proper divisors (15802692).

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

11066556 is a wasteful number, since it uses less digits than its factorization.

11066556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 11066556 is about 3326.6433532917. The cubic root of 11066556 is about 222.8456505298.

It can be divided in two parts, 110 and 66556, that added together give a palindrome (66666).

The spelling of 11066556 in words is "eleven million, sixty-six thousand, five hundred fifty-six".