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11666 = 219307
BaseRepresentation
bin10110110010010
3121000002
42312102
5333131
6130002
746004
oct26622
917002
1011666
118846
126902
135405
144374
1536cb
hex2d92

11666 has 8 divisors (see below), whose sum is σ = 18480. Its totient is φ = 5508.

The previous prime is 11657. The next prime is 11677. The reversal of 11666 is 66611.

Subtracting 11666 from its reverse (66611), we obtain a palindrome (54945).

It can be divided in two parts, 1166 and 6, that multiplied together give a palindrome (6996).

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.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 191.

It is an arithmetic number, because the mean of its divisors is an integer number (2310).

11666 is a deficient number, since it is larger than the sum of its proper divisors (6814).

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 product of its digits is 216, while the sum is 20.

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".

Divisors: 1 2 19 38 307 614 5833 11666