166863306 has 16 divisors (see below), whose sum is σ = 341488224. Its totient is φ = 54327504.

The previous prime is 166863289. The next prime is 166863311. The reversal of 166863306 is 603368661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323121 + ... + 323636.

It is an arithmetic number, because the mean of its divisors is an integer number (21343014).

Almost surely, 2^166863306 is an apocalyptic number.

166863306 is an abundant number, since it is smaller than the sum of its proper divisors (174624918).

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

166863306 is a wasteful number, since it uses less digits than its factorization.

166863306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646805.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 166863306 is about 12917.5580509630. The cubic root of 166863306 is about 550.5375526787.

The spelling of 166863306 in words is "one hundred sixty-six million, eight hundred sixty-three thousand, three hundred six".