168946328218 has 16 divisors (see below), whose sum is σ = 257587799040. Its totient is φ = 83083878000.

The previous prime is 168946328207. The next prime is 168946328227. The reversal of 168946328218 is 812823649861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166743 + ... + 4207093.

It is an arithmetic number, because the mean of its divisors is an integer number (16099237440).

Almost surely, 2^168946328218 is an apocalyptic number.

168946328218 is a deficient number, since it is larger than the sum of its proper divisors (88641470822).

168946328218 is a wasteful number, since it uses less digits than its factorization.

168946328218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74733.

The product of its digits is 7962624, while the sum is 58.

The spelling of 168946328218 in words is "one hundred sixty-eight billion, nine hundred forty-six million, three hundred twenty-eight thousand, two hundred eighteen".