444202660666 has 16 divisors (see below), whose sum is σ = 688249421568. Its totient is φ = 214795598400.

The previous prime is 444202660663. The next prime is 444202660711. The reversal of 444202660666 is 666066202444.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (444202660663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257695 + ... + 2446546.

It is an arithmetic number, because the mean of its divisors is an integer number (43015588848).

Almost surely, 2^444202660666 is an apocalyptic number.

444202660666 is a deficient number, since it is larger than the sum of its proper divisors (244046760902).

444202660666 is a wasteful number, since it uses less digits than its factorization.

444202660666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705797.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 444202660666 in words is "four hundred forty-four billion, two hundred two million, six hundred sixty thousand, six hundred sixty-six".