11655556 has 12 divisors (see below), whose sum is σ = 22251600. Its totient is φ = 5297960.

The previous prime is 11655551. The next prime is 11655563. The reversal of 11655556 is 65555611.

It is not an unprimeable number, because it can be changed into a prime (11655551) 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 3 ways as a sum of consecutive naturals, for example, 132406 + ... + 132493.

It is an arithmetic number, because the mean of its divisors is an integer number (1854300).

Almost surely, 2^11655556 is an apocalyptic number.

It is an amenable number.

11655556 is a deficient number, since it is larger than the sum of its proper divisors (10596044).

11655556 is a wasteful number, since it uses less digits than its factorization.

11655556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264914 (or 264912 counting only the distinct ones).

The product of its digits is 22500, while the sum is 34.

The square root of 11655556 is about 3414.0234328428. The cubic root of 11655556 is about 226.7310495693.

It can be divided in two parts, 116555 and 56, that added together give a palindrome (116611).

The spelling of 11655556 in words is "eleven million, six hundred fifty-five thousand, five hundred fifty-six".