2144643056 has 40 divisors (see below), whose sum is σ = 4226594064. Its totient is φ = 1054010880.

The previous prime is 2144643019. The next prime is 2144643077. The reversal of 2144643056 is 6503464412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355586 + ... + 361566.

Almost surely, 2^2144643056 is an apocalyptic number.

It is an amenable number.

2144643056 is a deficient number, since it is larger than the sum of its proper divisors (2081951008).

2144643056 is a wasteful number, since it uses less digits than its factorization.

2144643056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369 (or 6363 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 2144643056 is about 46310.2910377380. The cubic root of 2144643056 is about 1289.5900498127.

The spelling of 2144643056 in words is "two billion, one hundred forty-four million, six hundred forty-three thousand, fifty-six".