166450165 has 16 divisors (see below), whose sum is σ = 240289920. Its totient is φ = 108129600.

The previous prime is 166450159. The next prime is 166450183. The reversal of 166450165 is 561054661.

It is a happy number.

It is not a de Polignac number, because 166450165 - 2⁵ = 166450133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166450165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124486 + ... + 125815.

It is an arithmetic number, because the mean of its divisors is an integer number (15018120).

Almost surely, 2^166450165 is an apocalyptic number.

It is an amenable number.

166450165 is a deficient number, since it is larger than the sum of its proper divisors (73839755).

166450165 is a wasteful number, since it uses less digits than its factorization.

166450165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250332.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 166450165 is about 12901.5566890201. The cubic root of 166450165 is about 550.0828139763.

The spelling of 166450165 in words is "one hundred sixty-six million, four hundred fifty thousand, one hundred sixty-five".