2166126468 has 96 divisors (see below), whose sum is σ = 5853980160. Its totient is φ = 616112640.

The previous prime is 2166126467. The next prime is 2166126509. The reversal of 2166126468 is 8646216612.

It is not an unprimeable number, because it can be changed into a prime (2166126461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 993003 + ... + 995181.

It is an arithmetic number, because the mean of its divisors is an integer number (60978960).

Almost surely, 2^2166126468 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 2166126468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926990080).

2166126468 is an abundant number, since it is smaller than the sum of its proper divisors (3687853692).

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

2166126468 is a wasteful number, since it uses less digits than its factorization.

2166126468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657 (or 2655 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 2166126468 is about 46541.6637863323. The cubic root of 2166126468 is about 1293.8817969678.

The spelling of 2166126468 in words is "two billion, one hundred sixty-six million, one hundred twenty-six thousand, four hundred sixty-eight".