166908 has 24 divisors (see below), whose sum is σ = 445312. Its totient is φ = 47664.

The previous prime is 166871. The next prime is 166909. The reversal of 166908 is 809661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166909) by changing a digit.

166908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 1077.

2¹⁶⁶⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

166908 is an abundant number, since it is smaller than the sum of its proper divisors (278404).

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

166908 is a wasteful number, since it uses less digits than its factorization.

166908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 166908 is about 408.5437553066. The cubic root of 166908 is about 55.0586701749.

The spelling of 166908 in words is "one hundred sixty-six thousand, nine hundred eight".