2180220184 has 16 divisors (see below), whose sum is σ = 4133845800. Its totient is φ = 1077861312.

The previous prime is 2180220181. The next prime is 2180220247. The reversal of 2180220184 is 4810220812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180220181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530342 + ... + 1531765.

Almost surely, 2^2180220184 is an apocalyptic number.

It is an amenable number.

2180220184 is a deficient number, since it is larger than the sum of its proper divisors (1953625616).

2180220184 is a wasteful number, since it uses less digits than its factorization.

2180220184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062202 (or 3062198 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 2180220184 is about 46692.8279717560. The cubic root of 2180220184 is about 1296.6819097856.

Adding to 2180220184 its reverse (4810220812), we get a palindrome (6990440996).

The spelling of 2180220184 in words is "two billion, one hundred eighty million, two hundred twenty thousand, one hundred eighty-four".