11816656 has 40 divisors (see below), whose sum is σ = 23710784. Its totient is φ = 5702400.

The previous prime is 11816647. The next prime is 11816657. The reversal of 11816656 is 65661811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816657) 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 7 ways as a sum of consecutive naturals, for example, 78181 + ... + 78331.

Almost surely, 2^11816656 is an apocalyptic number.

11816656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11816656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11816656 is a wasteful number, since it uses less digits than its factorization.

11816656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 293 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 11816656 is about 3437.5363270808. The cubic root of 11816656 is about 227.7708788886.

The spelling of 11816656 in words is "eleven million, eight hundred sixteen thousand, six hundred fifty-six".