166008605 has 32 divisors (see below), whose sum is σ = 241090560. Its totient is φ = 107196480.

The previous prime is 166008599. The next prime is 166008607. The reversal of 166008605 is 506800661.

It is not a de Polignac number, because 166008605 - 2⁴ = 166008589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166008607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126362 + ... + 127668.

It is an arithmetic number, because the mean of its divisors is an integer number (7534080).

Almost surely, 2^166008605 is an apocalyptic number.

It is an amenable number.

166008605 is a deficient number, since it is larger than the sum of its proper divisors (75081955).

166008605 is a wasteful number, since it uses less digits than its factorization.

166008605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 166008605 is about 12884.4326611613. The cubic root of 166008605 is about 549.5959622140.

The spelling of 166008605 in words is "one hundred sixty-six million, eight thousand, six hundred five".