180997168 has 20 divisors (see below), whose sum is σ = 382562568. Its totient is φ = 82271360.

The previous prime is 180997163. The next prime is 180997171. The reversal of 180997168 is 861799081.

It is not an unprimeable number, because it can be changed into a prime (180997163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514021 + ... + 514372.

Almost surely, 2^180997168 is an apocalyptic number.

It is an amenable number.

180997168 is an abundant number, since it is smaller than the sum of its proper divisors (201565400).

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

180997168 is a wasteful number, since it uses less digits than its factorization.

180997168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028412 (or 1028406 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 49.

The square root of 180997168 is about 13453.5187962109. The cubic root of 180997168 is about 565.6623323568.

The spelling of 180997168 in words is "one hundred eighty million, nine hundred ninety-seven thousand, one hundred sixty-eight".