180161608 has 32 divisors (see below), whose sum is σ = 370581120. Its totient is φ = 81432000.

The previous prime is 180161587. The next prime is 180161617. The reversal of 180161608 is 806161081.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 180161608.

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, 10273 + ... + 21583.

It is an arithmetic number, because the mean of its divisors is an integer number (11580660).

Almost surely, 2^180161608 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 180161608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185290560).

180161608 is an abundant number, since it is smaller than the sum of its proper divisors (190419512).

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

180161608 is a wasteful number, since it uses less digits than its factorization.

180161608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509 (or 11505 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 180161608 is about 13422.4292883218. The cubic root of 180161608 is about 564.7905433952.

The spelling of 180161608 in words is "one hundred eighty million, one hundred sixty-one thousand, six hundred eight".