168935441780 has 48 divisors (see below), whose sum is σ = 418523943936. Its totient is φ = 56052311040.

The previous prime is 168935441723. The next prime is 168935441803. The reversal of 168935441780 is 87144539861.

It is a happy number.

168935441780 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 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, 19458269 + ... + 19466948.

It is an arithmetic number, because the mean of its divisors is an integer number (8719248832).

Almost surely, 2^168935441780 is an apocalyptic number.

168935441780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168935441780 is an abundant number, since it is smaller than the sum of its proper divisors (249588502156).

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

168935441780 is a wasteful number, since it uses less digits than its factorization.

168935441780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38925264 (or 38925262 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 168935441780 in words is "one hundred sixty-eight billion, nine hundred thirty-five million, four hundred forty-one thousand, seven hundred eighty".