11216646 has 24 divisors (see below), whose sum is σ = 27774864. Its totient is φ = 3204720.

The previous prime is 11216641. The next prime is 11216659. The reversal of 11216646 is 64661211.

11216646 is a `hidden beast` number, since 1 + 1 + 2 + 16 + 646 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11216641) 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 11 ways as a sum of consecutive naturals, for example, 44385 + ... + 44636.

It is an arithmetic number, because the mean of its divisors is an integer number (1157286).

Almost surely, 2^11216646 is an apocalyptic number.

11216646 is an abundant number, since it is smaller than the sum of its proper divisors (16558218).

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

11216646 is a wasteful number, since it uses less digits than its factorization.

11216646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89036 (or 89033 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11216646 is about 3349.1261546857. The cubic root of 11216646 is about 223.8485769772.

Adding to 11216646 its reverse (64661211), we get a palindrome (75877857).

The spelling of 11216646 in words is "eleven million, two hundred sixteen thousand, six hundred forty-six".