11216655 has 24 divisors (see below), whose sum is σ = 19813248. Its totient is φ = 5868096.

The previous prime is 11216641. The next prime is 11216659. The reversal of 11216655 is 55661211.

It is a happy number.

11216655 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 6 + 655 = 666.

It is not a de Polignac number, because 11216655 - 2⁸ = 11216399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11216659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^11216655 is an apocalyptic number.

11216655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11216655 is a deficient number, since it is larger than the sum of its proper divisors (8596593).

11216655 is a wasteful number, since it uses less digits than its factorization.

11216655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767 (or 4764 counting only the distinct ones).

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

The square root of 11216655 is about 3349.1274983195. The cubic root of 11216655 is about 223.8486368477.

Adding to 11216655 its reverse (55661211), we get a palindrome (66877866).

It can be divided in two parts, 1121 and 6655, that added together give a 5-th power (7776 = 6⁵).

The spelling of 11216655 in words is "eleven million, two hundred sixteen thousand, six hundred fifty-five".