168808816 has 40 divisors (see below), whose sum is σ = 363552624. Its totient is φ = 75279360.

The previous prime is 168808751. The next prime is 168808817. The reversal of 168808816 is 618808861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168808817) 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 7 ways as a sum of consecutive naturals, for example, 280 + ... + 18376.

Almost surely, 2^168808816 is an apocalyptic number.

168808816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168808816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181776312).

168808816 is an abundant number, since it is smaller than the sum of its proper divisors (194743808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168808816 is a wasteful number, since it uses less digits than its factorization.

168808816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169 (or 18163 counting only the distinct ones).

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

The square root of 168808816 is about 12992.6446884381. The cubic root of 168808816 is about 552.6689188191.

The spelling of 168808816 in words is "one hundred sixty-eight million, eight hundred eight thousand, eight hundred sixteen".