180887168 has 64 divisors (see below), whose sum is σ = 449305920. Its totient is φ = 70471680.

The previous prime is 180887159. The next prime is 180887171. The reversal of 180887168 is 861788081.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680 + ... + 19032.

It is an arithmetic number, because the mean of its divisors is an integer number (7020405).

Almost surely, 2^180887168 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 180887168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224652960).

180887168 is an abundant number, since it is smaller than the sum of its proper divisors (268418752).

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

180887168 is a wasteful number, since it uses less digits than its factorization.

180887168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18385 (or 18373 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 47.

The square root of 180887168 is about 13449.4300250977. The cubic root of 180887168 is about 565.5477164456.

The spelling of 180887168 in words is "one hundred eighty million, eight hundred eighty-seven thousand, one hundred sixty-eight".