168211808 has 36 divisors (see below), whose sum is σ = 336470652. Its totient is φ = 82779840.

The previous prime is 168211801. The next prime is 168211819. The reversal of 168211808 is 808112861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168211801) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 143063 + ... + 144233.

It is an arithmetic number, because the mean of its divisors is an integer number (9346407).

Almost surely, 2^168211808 is an apocalyptic number.

It is an amenable number.

168211808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

168211808 is an equidigital number, since it uses as much as digits as its factorization.

168211808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 35.

The square root of 168211808 is about 12969.6494941074. The cubic root of 168211808 is about 552.0166276585.

The spelling of 168211808 in words is "one hundred sixty-eight million, two hundred eleven thousand, eight hundred eight".