6224868666 has 24 divisors (see below), whose sum is σ = 13490377524. Its totient is φ = 2074469760.

The previous prime is 6224868659. The next prime is 6224868679. The reversal of 6224868666 is 6668684226.

It can be written as a sum of positive squares in 2 ways, for example, as 5461949025 + 762919641 = 73905^2 + 27621^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43026 + ... + 119586.

Almost surely, 2^6224868666 is an apocalyptic number.

6224868666 is an abundant number, since it is smaller than the sum of its proper divisors (7265508858).

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

6224868666 is a wasteful number, since it uses less digits than its factorization.

6224868666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81086 (or 81083 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The square root of 6224868666 is about 78897.8368905004. The cubic root of 6224868666 is about 1839.5435093550.

The spelling of 6224868666 in words is "six billion, two hundred twenty-four million, eight hundred sixty-eight thousand, six hundred sixty-six".