166285 has 8 divisors (see below), whose sum is σ = 228096. Its totient is φ = 114000.

The previous prime is 166273. The next prime is 166289. The reversal of 166285 is 582661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166285 - 2⁷ = 166157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341 + ... + 2410.

It is an arithmetic number, because the mean of its divisors is an integer number (28512).

2¹⁶⁶²⁸⁵ is an apocalyptic number.

It is an amenable number.

166285 is a deficient number, since it is larger than the sum of its proper divisors (61811).

166285 is an equidigital number, since it uses as much as digits as its factorization.

166285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763.

The product of its digits is 2880, while the sum is 28.

The square root of 166285 is about 407.7805782526. The cubic root of 166285 is about 54.9900808558.

The spelling of 166285 in words is "one hundred sixty-six thousand, two hundred eighty-five".