168858866 has 16 divisors (see below), whose sum is σ = 279815040. Its totient is φ = 75781680.

The previous prime is 168858857. The next prime is 168858883. The reversal of 168858866 is 668858861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46841 + ... + 50316.

It is an arithmetic number, because the mean of its divisors is an integer number (17488440).

Almost surely, 2^168858866 is an apocalyptic number.

168858866 is a deficient number, since it is larger than the sum of its proper divisors (110956174).

168858866 is a wasteful number, since it uses less digits than its factorization.

168858866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97249.

The product of its digits is 4423680, while the sum is 56.

The square root of 168858866 is about 12994.5706354616. The cubic root of 168858866 is about 552.7235335538.

The spelling of 168858866 in words is "one hundred sixty-eight million, eight hundred fifty-eight thousand, eight hundred sixty-six".