2118118118 has 4 divisors (see below), whose sum is σ = 3177177180. Its totient is φ = 1059059058.

The previous prime is 2118118117. The next prime is 2118118151. The reversal of 2118118118 is 8118118112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118118117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529529528 + ... + 529529531.

It is an arithmetic number, because the mean of its divisors is an integer number (794294295).

Almost surely, 2^2118118118 is an apocalyptic number.

2118118118 is a deficient number, since it is larger than the sum of its proper divisors (1059059062).

2118118118 is a wasteful number, since it uses less digits than its factorization.

2118118118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059059061.

The product of its digits is 1024, while the sum is 32.

The square root of 2118118118 is about 46023.0172631043. The cubic root of 2118118118 is about 1284.2514311596.

The spelling of 2118118118 in words is "two billion, one hundred eighteen million, one hundred eighteen thousand, one hundred eighteen".