2180612085 has 16 divisors (see below), whose sum is σ = 3498342144. Its totient is φ = 1159872192.

The previous prime is 2180612041. The next prime is 2180612099. The reversal of 2180612085 is 5802160812.

It is not a de Polignac number, because 2180612085 - 2¹⁰ = 2180611061 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189277 + ... + 200466.

It is an arithmetic number, because the mean of its divisors is an integer number (218646384).

Almost surely, 2^2180612085 is an apocalyptic number.

It is an amenable number.

2180612085 is a deficient number, since it is larger than the sum of its proper divisors (1317730059).

2180612085 is a wasteful number, since it uses less digits than its factorization.

2180612085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390124.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 2180612085 is about 46697.0243698675. The cubic root of 2180612085 is about 1296.7595992617.

Adding to 2180612085 its reverse (5802160812), we get a palindrome (7982772897).

The spelling of 2180612085 in words is "two billion, one hundred eighty million, six hundred twelve thousand, eighty-five".