168845920280 has 16 divisors (see below), whose sum is σ = 379903320720. Its totient is φ = 67538368096.

The previous prime is 168845920279. The next prime is 168845920291. The reversal of 168845920280 is 82029548861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110573964 + ... + 2110574043.

It is an arithmetic number, because the mean of its divisors is an integer number (23743957545).

Almost surely, 2^168845920280 is an apocalyptic number.

168845920280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168845920280 is an abundant number, since it is smaller than the sum of its proper divisors (211057400440).

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

168845920280 is a wasteful number, since it uses less digits than its factorization.

168845920280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221148018 (or 4221148014 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 168845920280 in words is "one hundred sixty-eight billion, eight hundred forty-five million, nine hundred twenty thousand, two hundred eighty".