180180018216 has 128 divisors (see below), whose sum is σ = 546594480000. Its totient is φ = 54540564480.

The previous prime is 180180018209. The next prime is 180180018229. The reversal of 180180018216 is 612810081081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2166490 + ... + 2248118.

It is an arithmetic number, because the mean of its divisors is an integer number (4270269375).

Almost surely, 2^180180018216 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 180180018216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273297240000).

180180018216 is an abundant number, since it is smaller than the sum of its proper divisors (366414461784).

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

180180018216 is a wasteful number, since it uses less digits than its factorization.

180180018216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82584 (or 82574 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 36.

Adding to 180180018216 its reverse (612810081081), we get a palindrome (792990099297).

The spelling of 180180018216 in words is "one hundred eighty billion, one hundred eighty million, eighteen thousand, two hundred sixteen".