2223556668 has 36 divisors (see below), whose sum is σ = 5623537920. Its totient is φ = 740805696.

The previous prime is 2223556663. The next prime is 2223556711. The reversal of 2223556668 is 8666553222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223556663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60421 + ... + 89987.

Almost surely, 2^2223556668 is an apocalyptic number.

It is an amenable number.

2223556668 is an abundant number, since it is smaller than the sum of its proper divisors (3399981252).

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

2223556668 is a wasteful number, since it uses less digits than its factorization.

2223556668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31666 (or 31661 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2223556668 is about 47154.6038897582. The cubic root of 2223556668 is about 1305.2170370514.

The spelling of 2223556668 in words is "two billion, two hundred twenty-three million, five hundred fifty-six thousand, six hundred sixty-eight".