2180537085 has 16 divisors (see below), whose sum is σ = 3489756480. Its totient is φ = 1162654080.

The previous prime is 2180537081. The next prime is 2180537087. The reversal of 2180537085 is 5807350812.

It is not a de Polignac number, because 2180537085 - 2² = 2180537081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180537081) 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, 49650 + ... + 82620.

It is an arithmetic number, because the mean of its divisors is an integer number (218109780).

Almost surely, 2^2180537085 is an apocalyptic number.

It is an amenable number.

2180537085 is a deficient number, since it is larger than the sum of its proper divisors (1309219395).

2180537085 is a wasteful number, since it uses less digits than its factorization.

2180537085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37388.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 2180537085 is about 46696.2213139350. The cubic root of 2180537085 is about 1296.7447321691.

Adding to 2180537085 its reverse (5807350812), we get a palindrome (7987887897).

The spelling of 2180537085 in words is "two billion, one hundred eighty million, five hundred thirty-seven thousand, eighty-five".