206166 has 8 divisors (see below), whose sum is σ = 412344. Its totient is φ = 68720.

The previous prime is 206153. The next prime is 206177. The reversal of 206166 is 661602.

206166 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.

206166 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

206166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17175 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (51543).

2²⁰⁶¹⁶⁶ is an apocalyptic number.

206166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206166 is a wasteful number, since it uses less digits than its factorization.

206166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34366.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 206166 is about 454.0550627402. The cubic root of 206166 is about 59.0752654303.

Adding to 206166 its reverse (661602), we get a palindrome (867768).

The spelling of 206166 in words is "two hundred six thousand, one hundred sixty-six".