2160800218 has 4 divisors (see below), whose sum is σ = 3241200330. Its totient is φ = 1080400108.

The previous prime is 2160800203. The next prime is 2160800221. The reversal of 2160800218 is 8120080612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1430881929 + 729918289 = 37827^2 + 27017^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540200053 + ... + 540200056.

Almost surely, 2^2160800218 is an apocalyptic number.

2160800218 is a deficient number, since it is larger than the sum of its proper divisors (1080400112).

2160800218 is a wasteful number, since it uses less digits than its factorization.

2160800218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080400111.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 2160800218 is about 46484.4083322570. The cubic root of 2160800218 is about 1292.8204255527.

The spelling of 2160800218 in words is "two billion, one hundred sixty million, eight hundred thousand, two hundred eighteen".