180185881224180 has 48 divisors (see below), whose sum is σ = 543329734155264. Its totient is φ = 44353447685760.

The previous prime is 180185881224179. The next prime is 180185881224187. The reversal of 180185881224180 is 81422188581081.

It is a self number, because there is not a number n which added to its sum of digits gives 180185881224180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180185881224187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115503769236 + ... + 115503770795.

It is an arithmetic number, because the mean of its divisors is an integer number (11319369461568).

Almost surely, 2^{180185881224180} is an apocalyptic number.

180185881224180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180185881224180 is an abundant number, since it is smaller than the sum of its proper divisors (363143852931084).

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

180185881224180 is a wasteful number, since it uses less digits than its factorization.

180185881224180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231007540056 (or 231007540054 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 57.

The spelling of 180185881224180 in words is "one hundred eighty trillion, one hundred eighty-five billion, eight hundred eighty-one million, two hundred twenty-four thousand, one hundred eighty".