168001768808 has 16 divisors (see below), whose sum is σ = 316743669060. Its totient is φ = 83536790400.

The previous prime is 168001768801. The next prime is 168001768811. The reversal of 168001768808 is 808867100861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 162201118564 + 5800650244 = 402742^2 + 76162^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168001768808.

It is not an unprimeable number, because it can be changed into a prime (168001768801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58010213 + ... + 58013108.

Almost surely, 2^168001768808 is an apocalyptic number.

It is an amenable number.

168001768808 is a deficient number, since it is larger than the sum of its proper divisors (148741900252).

168001768808 is a wasteful number, since it uses less digits than its factorization.

168001768808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116023508 (or 116023504 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 53.

The spelling of 168001768808 in words is "one hundred sixty-eight billion, one million, seven hundred sixty-eight thousand, eight hundred eight".