166665006 has 16 divisors (see below), whose sum is σ = 370366800. Its totient is φ = 55554984.

The previous prime is 166664963. The next prime is 166665011. The reversal of 166665006 is 600566661.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543141 + ... + 1543248.

It is an arithmetic number, because the mean of its divisors is an integer number (23147925).

Almost surely, 2^166665006 is an apocalyptic number.

166665006 is an abundant number, since it is smaller than the sum of its proper divisors (203701794).

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

166665006 is a wasteful number, since it uses less digits than its factorization.

166665006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086400 (or 3086394 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 166665006 is about 12909.8801698544. The cubic root of 166665006 is about 550.3193803429.

The spelling of 166665006 in words is "one hundred sixty-six million, six hundred sixty-five thousand, six".