11655655 has 16 divisors (see below), whose sum is σ = 15490944. Its totient is φ = 8347680.

The previous prime is 11655649. The next prime is 11655667. The reversal of 11655655 is 55655611.

It is not a de Polignac number, because 11655655 - 2³ = 11655647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11655655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104 + ... + 5266.

It is an arithmetic number, because the mean of its divisors is an integer number (968184).

Almost surely, 2^11655655 is an apocalyptic number.

11655655 is a deficient number, since it is larger than the sum of its proper divisors (3835289).

11655655 is a wasteful number, since it uses less digits than its factorization.

11655655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246.

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

The square root of 11655655 is about 3414.0379318338. The cubic root of 11655655 is about 226.7316915038.

It can be divided in two parts, 116556 and 55, that added together give a palindrome (116611).

The spelling of 11655655 in words is "eleven million, six hundred fifty-five thousand, six hundred fifty-five".