2166112284 has 48 divisors (see below), whose sum is σ = 5802252288. Its totient is φ = 616108608.

The previous prime is 2166112241. The next prime is 2166112313. The reversal of 2166112284 is 4822116612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39087 + ... + 76550.

It is an arithmetic number, because the mean of its divisors is an integer number (120880256).

Almost surely, 2^2166112284 is an apocalyptic number.

It is an amenable number.

2166112284 is an abundant number, since it is smaller than the sum of its proper divisors (3636140004).

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

2166112284 is a wasteful number, since it uses less digits than its factorization.

2166112284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115874 (or 115872 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 2166112284 is about 46541.5114064853. The cubic root of 2166112284 is about 1293.8789728083.

Adding to 2166112284 its reverse (4822116612), we get a palindrome (6988228896).

The spelling of 2166112284 in words is "two billion, one hundred sixty-six million, one hundred twelve thousand, two hundred eighty-four".