4163220818 has 8 divisors (see below), whose sum is σ = 6314998140. Its totient is φ = 2058221440.

The previous prime is 4163220791. The next prime is 4163220851. The reversal of 4163220818 is 8180223614.

4163220818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3417220849 + 745999969 = 58457^2 + 27313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11694263 + ... + 11694618.

Almost surely, 2^4163220818 is an apocalyptic number.

4163220818 is a deficient number, since it is larger than the sum of its proper divisors (2151777322).

4163220818 is a wasteful number, since it uses less digits than its factorization.

4163220818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23388972.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 4163220818 is about 64523.0254870306. The cubic root of 4163220818 is about 1608.7052612950.

The spelling of 4163220818 in words is "four billion, one hundred sixty-three million, two hundred twenty thousand, eight hundred eighteen".