2160218205 has 24 divisors (see below), whose sum is σ = 3941452320. Its totient is φ = 1091478240.

The previous prime is 2160218189. The next prime is 2160218251. The reversal of 2160218205 is 5028120612.

It is a happy number.

2160218205 is a `hidden beast` number, since 21 + 602 + 18 + 20 + 5 = 666.

It is not a de Polignac number, because 2160218205 - 2⁴ = 2160218189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1262431 + ... + 1264140.

It is an arithmetic number, because the mean of its divisors is an integer number (164227180).

Almost surely, 2^2160218205 is an apocalyptic number.

It is an amenable number.

2160218205 is a deficient number, since it is larger than the sum of its proper divisors (1781234115).

2160218205 is a wasteful number, since it uses less digits than its factorization.

2160218205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526601 (or 2526598 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2160218205 is about 46478.1476072358. The cubic root of 2160218205 is about 1292.7043411110.

Adding to 2160218205 its reverse (5028120612), we get a palindrome (7188338817).

The spelling of 2160218205 in words is "two billion, one hundred sixty million, two hundred eighteen thousand, two hundred five".