2243556664 has 16 divisors (see below), whose sum is σ = 4208361120. Its totient is φ = 1121327040.

The previous prime is 2243556661. The next prime is 2243556671. The reversal of 2243556664 is 4666553422.

It is a self number, because there is not a number n which added to its sum of digits gives 2243556664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243556661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34797 + ... + 75484.

It is an arithmetic number, because the mean of its divisors is an integer number (263022570).

Almost surely, 2^2243556664 is an apocalyptic number.

It is an amenable number.

2243556664 is a deficient number, since it is larger than the sum of its proper divisors (1964804456).

2243556664 is a wasteful number, since it uses less digits than its factorization.

2243556664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112830 (or 112826 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The square root of 2243556664 is about 47366.1974830152. The cubic root of 2243556664 is about 1309.1186628667.

The spelling of 2243556664 in words is "two billion, two hundred forty-three million, five hundred fifty-six thousand, six hundred sixty-four".