2144256066 has 24 divisors (see below), whose sum is σ = 4688515260. Its totient is φ = 708194016.

The previous prime is 2144256041. The next prime is 2144256071. The reversal of 2144256066 is 6606524412.

2144256066 is a `hidden beast` number, since 2 + 1 + 4 + 42 + 5 + 606 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2144153025 + 103041 = 46305^2 + 321^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2144256066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544485 + ... + 548408.

Almost surely, 2^2144256066 is an apocalyptic number.

2144256066 is an abundant number, since it is smaller than the sum of its proper divisors (2544259194).

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

2144256066 is a wasteful number, since it uses less digits than its factorization.

2144256066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093010 (or 1093007 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 2144256066 is about 46306.1126202578. The cubic root of 2144256066 is about 1289.5124784779.

The spelling of 2144256066 in words is "two billion, one hundred forty-four million, two hundred fifty-six thousand, sixty-six".