180108918 has 48 divisors (see below), whose sum is σ = 427242816. Its totient is φ = 54382320.

The previous prime is 180108913. The next prime is 180108919. The reversal of 180108918 is 819801081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180108913) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59305 + ... + 62267.

It is an arithmetic number, because the mean of its divisors is an integer number (8900892).

Almost surely, 2^180108918 is an apocalyptic number.

180108918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 180108918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213621408).

180108918 is an abundant number, since it is smaller than the sum of its proper divisors (247133898).

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

180108918 is a wasteful number, since it uses less digits than its factorization.

180108918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289 (or 3286 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

The square root of 180108918 is about 13420.4663853385. The cubic root of 180108918 is about 564.7354785461.

Adding to 180108918 its reverse (819801081), we get a palindrome (999909999).

The spelling of 180108918 in words is "one hundred eighty million, one hundred eight thousand, nine hundred eighteen".