168966844 has 12 divisors (see below), whose sum is σ = 296024344. Its totient is φ = 84388464.

The previous prime is 168966841. The next prime is 168966857. The reversal of 168966844 is 448669861.

It is a junction number, because it is equal to n+sod(n) for n = 168966791 and 168966800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168966841) 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 3 ways as a sum of consecutive naturals, for example, 19659 + ... + 26914.

Almost surely, 2^168966844 is an apocalyptic number.

It is an amenable number.

168966844 is a deficient number, since it is larger than the sum of its proper divisors (127057500).

168966844 is a wasteful number, since it uses less digits than its factorization.

168966844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47484 (or 47482 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 168966844 is about 12998.7247066780. The cubic root of 168966844 is about 552.8413227787.

The spelling of 168966844 in words is "one hundred sixty-eight million, nine hundred sixty-six thousand, eight hundred forty-four".