2162658816 has 120 divisors (see below), whose sum is σ = 6394371984. Its totient is φ = 703242240.

The previous prime is 2162658781. The next prime is 2162658821. The reversal of 2162658816 is 6188562612.

2162658816 is a `hidden beast` number, since 2 + 1 + 62 + 6 + 588 + 1 + 6 = 666.

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 11 ways as a sum of consecutive naturals, for example, 183205 + ... + 194651.

Almost surely, 2^2162658816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2162658816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3197185992).

2162658816 is an abundant number, since it is smaller than the sum of its proper divisors (4231713168).

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

2162658816 is a wasteful number, since it uses less digits than its factorization.

2162658816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11512 (or 11493 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2162658816 is about 46504.3956632059. The cubic root of 2162658816 is about 1293.1909896365.

The spelling of 2162658816 in words is "two billion, one hundred sixty-two million, six hundred fifty-eight thousand, eight hundred sixteen".