168868681184 has 72 divisors (see below), whose sum is σ = 387848827800. Its totient is φ = 72164687616.

The previous prime is 168868681169. The next prime is 168868681237. The reversal of 168868681184 is 481186868861.

168868681184 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168868681184.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392939 + ... + 701525.

It is an arithmetic number, because the mean of its divisors is an integer number (5386789275).

Almost surely, 2^168868681184 is an apocalyptic number.

168868681184 is a gapful number since it is divisible by the number (14) 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 168868681184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193924413900).

168868681184 is an abundant number, since it is smaller than the sum of its proper divisors (218980146616).

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

168868681184 is a wasteful number, since it uses less digits than its factorization.

168868681184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308960 (or 308945 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 65.

The spelling of 168868681184 in words is "one hundred sixty-eight billion, eight hundred sixty-eight million, six hundred eighty-one thousand, one hundred eighty-four".