11766636 has 72 divisors (see below), whose sum is σ = 34673184. Its totient is φ = 3294720.

The previous prime is 11766611. The next prime is 11766637. The reversal of 11766636 is 63666711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 11766636.

It is not an unprimeable number, because it can be changed into a prime (11766637) 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, 12916 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (481572).

Almost surely, 2^11766636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11766636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17336592).

11766636 is an abundant number, since it is smaller than the sum of its proper divisors (22906548).

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

11766636 is a wasteful number, since it uses less digits than its factorization.

11766636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 946 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 11766636 is about 3430.2530518899. The cubic root of 11766636 is about 227.4490390221.

The spelling of 11766636 in words is "eleven million, seven hundred sixty-six thousand, six hundred thirty-six".