Subtracting 11666 from its reverse (66611), we obtain a palindrome (54945).
11666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is a plaindrome in base 10.
It is a zygodrome in base 10.
It is an unprimeable number.
11666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
11666 is a wasteful number, since it uses less digits than its factorization.
11666 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 328.
The square root of 11666 is about 108.0092588624. The cubic root of 11666 is about 22.6798750391.
The spelling of 11666 in words is "eleven thousand, six hundred sixty-six".