168961709336 has 96 divisors (see below), whose sum is σ = 382391655840. Its totient is φ = 68552165376.

The previous prime is 168961709297. The next prime is 168961709339. The reversal of 168961709336 is 633907169861.

168961709336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168961709339) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 45949130 + ... + 45952806.

It is an arithmetic number, because the mean of its divisors is an integer number (3983246415).

Almost surely, 2^168961709336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168961709336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191195827920).

168961709336 is an abundant number, since it is smaller than the sum of its proper divisors (213429946504).

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

168961709336 is a wasteful number, since it uses less digits than its factorization.

168961709336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001 (or 5978 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 168961709336 in words is "one hundred sixty-eight billion, nine hundred sixty-one million, seven hundred nine thousand, three hundred thirty-six".