168701666844 has 48 divisors (see below), whose sum is σ = 397432199808. Its totient is φ = 55692057408.

The previous prime is 168701666839. The next prime is 168701666899. The reversal of 168701666844 is 448666107861.

168701666844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 4858047 + ... + 4892649.

It is an arithmetic number, because the mean of its divisors is an integer number (8279837496).

Almost surely, 2^168701666844 is an apocalyptic number.

It is an amenable number.

168701666844 is an abundant number, since it is smaller than the sum of its proper divisors (228730532964).

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

168701666844 is a wasteful number, since it uses less digits than its factorization.

168701666844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38514 (or 38512 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 168701666844 in words is "one hundred sixty-eight billion, seven hundred one million, six hundred sixty-six thousand, eight hundred forty-four".