2666223168 has 112 divisors (see below), whose sum is σ = 8075249280. Its totient is φ = 760541184.

The previous prime is 2666223139. The next prime is 2666223187. The reversal of 2666223168 is 8613226662.

It is a happy number.

2666223168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

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, 1112980 + ... + 1115372.

It is an arithmetic number, because the mean of its divisors is an integer number (72100440).

Almost surely, 2^2666223168 is an apocalyptic number.

2666223168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666223168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4037624640).

2666223168 is an abundant number, since it is smaller than the sum of its proper divisors (5409026112).

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

2666223168 is a wasteful number, since it uses less digits than its factorization.

2666223168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3234 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 2666223168 is about 51635.4836134997. The cubic root of 2666223168 is about 1386.6456682389.

The spelling of 2666223168 in words is "two billion, six hundred sixty-six million, two hundred twenty-three thousand, one hundred sixty-eight".