11816766 has 80 divisors (see below), whose sum is σ = 29597568. Its totient is φ = 3499200.

The previous prime is 11816731. The next prime is 11816771. The reversal of 11816766 is 66761811.

It is a self number, because there is not a number n which added to its sum of digits gives 11816766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65196 + ... + 65376.

Almost surely, 2^11816766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11816766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14798784).

11816766 is an abundant number, since it is smaller than the sum of its proper divisors (17780802).

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

11816766 is a wasteful number, since it uses less digits than its factorization.

11816766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 230 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 11816766 is about 3437.5523268745. The cubic root of 11816766 is about 227.7715856514.

The spelling of 11816766 in words is "eleven million, eight hundred sixteen thousand, seven hundred sixty-six".