166408908 has 12 divisors (see below), whose sum is σ = 388287480. Its totient is φ = 55469632.

The previous prime is 166408901. The next prime is 166408919. The reversal of 166408908 is 809804661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 166408908.

It is not an unprimeable number, because it can be changed into a prime (166408901) 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, 6933693 + ... + 6933716.

It is an arithmetic number, because the mean of its divisors is an integer number (32357290).

Almost surely, 2^166408908 is an apocalyptic number.

It is an amenable number.

166408908 is an abundant number, since it is smaller than the sum of its proper divisors (221878572).

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

166408908 is a wasteful number, since it uses less digits than its factorization.

166408908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867416 (or 13867414 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 166408908 is about 12899.9576743492. The cubic root of 166408908 is about 550.0373616493.

The spelling of 166408908 in words is "one hundred sixty-six million, four hundred eight thousand, nine hundred eight".