2118168162 has 72 divisors (see below), whose sum is σ = 5094982620. Its totient is φ = 635448000.

The previous prime is 2118168137. The next prime is 2118168251. The reversal of 2118168162 is 2618618112.

It can be written as a sum of positive squares in 2 ways, for example, as 1373369481 + 744798681 = 37059^2 + 27291^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 215164 + ... + 224792.

Almost surely, 2^2118168162 is an apocalyptic number.

2118168162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118168162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2547491310).

2118168162 is an abundant number, since it is smaller than the sum of its proper divisors (2976814458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118168162 is a wasteful number, since it uses less digits than its factorization.

2118168162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760 (or 9746 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 2118168162 is about 46023.5609443685. The cubic root of 2118168162 is about 1284.2615452592.

The spelling of 2118168162 in words is "two billion, one hundred eighteen million, one hundred sixty-eight thousand, one hundred sixty-two".