166255 has 8 divisors (see below), whose sum is σ = 204624. Its totient is φ = 129600.

The previous prime is 166247. The next prime is 166259. The reversal of 166255 is 552661.

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

It is not a de Polignac number, because 166255 - 2³ = 166247 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 (166259) 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, 201 + ... + 610.

It is an arithmetic number, because the mean of its divisors is an integer number (25578).

2¹⁶⁶²⁵⁵ is an apocalyptic number.

166255 is a deficient number, since it is larger than the sum of its proper divisors (38369).

166255 is an equidigital number, since it uses as much as digits as its factorization.

166255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857.

The product of its digits is 1800, while the sum is 25.

The square root of 166255 is about 407.7437921048. The cubic root of 166255 is about 54.9867736791.

The spelling of 166255 in words is "one hundred sixty-six thousand, two hundred fifty-five".