6442222826666 has 32 divisors (see below), whose sum is σ = 10632288877056. Its totient is φ = 2903194710000.

The previous prime is 6442222826621. The next prime is 6442222826803. The reversal of 6442222826666 is 6666282222446.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2012141 + ... + 4114991.

It is an arithmetic number, because the mean of its divisors is an integer number (332259027408).

Almost surely, 2^{6442222826666} is an apocalyptic number.

6442222826666 is a deficient number, since it is larger than the sum of its proper divisors (4190066050390).

6442222826666 is a wasteful number, since it uses less digits than its factorization.

6442222826666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104058.

The product of its digits is 31850496, while the sum is 56.

The spelling of 6442222826666 in words is "six trillion, four hundred forty-two billion, two hundred twenty-two million, eight hundred twenty-six thousand, six hundred sixty-six".