168868586 has 16 divisors (see below), whose sum is σ = 260064000. Its totient is φ = 82189920.

The previous prime is 168868571. The next prime is 168868589. The reversal of 168868586 is 685868861.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168868589) by changing a digit.

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, 38855 + ... + 42981.

It is an arithmetic number, because the mean of its divisors is an integer number (16254000).

Almost surely, 2^168868586 is an apocalyptic number.

168868586 is a deficient number, since it is larger than the sum of its proper divisors (91195414).

168868586 is a wasteful number, since it uses less digits than its factorization.

168868586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669.

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

The square root of 168868586 is about 12994.9446324330. The cubic root of 168868586 is about 552.7341388002.

The spelling of 168868586 in words is "one hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred eighty-six".