11126556 has 72 divisors (see below), whose sum is σ = 32672640. Its totient is φ = 3126816.

The previous prime is 11126537. The next prime is 11126561. The reversal of 11126556 is 65562111.

It is a happy number.

11126556 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 655 + 6 = 666.

11126556 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11126556² = 247600496842272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16555 + ... + 17213.

Almost surely, 2^11126556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11126556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16336320).

11126556 is an abundant number, since it is smaller than the sum of its proper divisors (21546084).

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

11126556 is a wasteful number, since it uses less digits than its factorization.

11126556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 738 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 11126556 is about 3335.6492621377. The cubic root of 11126556 is about 223.2476619995.

Adding to 11126556 its reverse (65562111), we get a palindrome (76688667).

The spelling of 11126556 in words is "eleven million, one hundred twenty-six thousand, five hundred fifty-six".