201166 has 8 divisors (see below), whose sum is σ = 344880. Its totient is φ = 86208.

The previous prime is 201163. The next prime is 201167. The reversal of 201166 is 661102.

201166 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (201163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7171 + ... + 7198.

It is an arithmetic number, because the mean of its divisors is an integer number (43110).

2²⁰¹¹⁶⁶ is an apocalyptic number.

201166 is a deficient number, since it is larger than the sum of its proper divisors (143714).

201166 is a wasteful number, since it uses less digits than its factorization.

201166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 201166 is about 448.5153286121. The cubic root of 201166 is about 58.5937814459.

Adding to 201166 its reverse (661102), we get a palindrome (862268).

The spelling of 201166 in words is "two hundred one thousand, one hundred sixty-six".