166854 has 8 divisors (see below), whose sum is σ = 333720. Its totient is φ = 55616.

The previous prime is 166853. The next prime is 166861. The reversal of 166854 is 458661.

166854 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.

166854 is an admirable number.

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166853) 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, 13899 + ... + 13910.

It is an arithmetic number, because the mean of its divisors is an integer number (41715).

2¹⁶⁶⁸⁵⁴ is an apocalyptic number.

166854 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.

166854 is a wasteful number, since it uses less digits than its factorization.

166854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27814.

The product of its digits is 5760, while the sum is 30.

The square root of 166854 is about 408.4776615679. The cubic root of 166854 is about 55.0527317959.

The spelling of 166854 in words is "one hundred sixty-six thousand, eight hundred fifty-four".