11811366 has 32 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 3374568.

The previous prime is 11811361. The next prime is 11811367. The reversal of 11811366 is 66311811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15246 + ... + 16001.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^11811366 is an apocalyptic number.

11811366 is an abundant number, since it is smaller than the sum of its proper divisors (18186714).

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

11811366 is a wasteful number, since it uses less digits than its factorization.

11811366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31265 (or 31259 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11811366 is about 3436.7667945323. The cubic root of 11811366 is about 227.7368848439.

Adding to 11811366 its product of digits (864), we get a triangular number (11812230 = T₄₈₆₀).

The spelling of 11811366 in words is "eleven million, eight hundred eleven thousand, three hundred sixty-six".