168816808 has 8 divisors (see below), whose sum is σ = 316531530. Its totient is φ = 84408400.

The previous prime is 168816797. The next prime is 168816821. The reversal of 168816808 is 808618861.

168816808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99960004 + 68856804 = 9998^2 + 8298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×168816808³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 as a sum of consecutive naturals, namely, 10551043 + ... + 10551058.

Almost surely, 2^168816808 is an apocalyptic number.

It is an amenable number.

168816808 is a deficient number, since it is larger than the sum of its proper divisors (147714722).

168816808 is a wasteful number, since it uses less digits than its factorization.

168816808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102107 (or 21102103 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The square root of 168816808 is about 12992.9522434280. The cubic root of 168816808 is about 552.6776404416.

It can be divided in two parts, 1688 and 16808, that added together give a square (18496 = 136²).

The spelling of 168816808 in words is "one hundred sixty-eight million, eight hundred sixteen thousand, eight hundred eight".