11266506 has 64 divisors (see below), whose sum is σ = 26880000. Its totient is φ = 3487536.

The previous prime is 11266501. The next prime is 11266523. The reversal of 11266506 is 60566211.

It is a happy number.

11266506 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 650 + 6 = 666.

It is a super-3 number, since 3×11266506³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11266506.

It is not an unprimeable number, because it can be changed into a prime (11266501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80985 + ... + 81123.

It is an arithmetic number, because the mean of its divisors is an integer number (420000).

Almost surely, 2^11266506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11266506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13440000).

11266506 is an abundant number, since it is smaller than the sum of its proper divisors (15613494).

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

11266506 is a wasteful number, since it uses less digits than its factorization.

11266506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11266506 is about 3356.5616335768. The cubic root of 11266506 is about 224.1797690611.

The spelling of 11266506 in words is "eleven million, two hundred sixty-six thousand, five hundred six".