166846 has 4 divisors (see below), whose sum is σ = 250272. Its totient is φ = 83422.

The previous prime is 166843. The next prime is 166847. The reversal of 166846 is 648661.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41710 + ... + 41713.

It is an arithmetic number, because the mean of its divisors is an integer number (62568).

2¹⁶⁶⁸⁴⁶ is an apocalyptic number.

166846 is a deficient number, since it is larger than the sum of its proper divisors (83426).

166846 is an equidigital number, since it uses as much as digits as its factorization.

166846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83425.

The product of its digits is 6912, while the sum is 31.

The square root of 166846 is about 408.4678689934. The cubic root of 166846 is about 55.0518519270.

The spelling of 166846 in words is "one hundred sixty-six thousand, eight hundred forty-six".