167720980 has 96 divisors (see below), whose sum is σ = 448761600. Its totient is φ = 51259392.

The previous prime is 167720953. The next prime is 167721023. The reversal of 167720980 is 89027761.

167720980 is digitally balanced in base 3, 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43366 + ... + 47074.

It is an arithmetic number, because the mean of its divisors is an integer number (4674600).

Almost surely, 2^167720980 is an apocalyptic number.

167720980 is a gapful number since it is divisible by the number (10) 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 167720980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224380800).

167720980 is an abundant number, since it is smaller than the sum of its proper divisors (281040620).

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

167720980 is a wasteful number, since it uses less digits than its factorization.

167720980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 167720980 is about 12950.7134938582. The cubic root of 167720980 is about 551.4791917903.

The spelling of 167720980 in words is "one hundred sixty-seven million, seven hundred twenty thousand, nine hundred eighty".