4408420910666 has 24 divisors (see below), whose sum is σ = 7032464886636. Its totient is φ = 2072196008960.

The previous prime is 4408420910659. The next prime is 4408420910711. The reversal of 4408420910666 is 6660190248044.

It can be written as a sum of positive squares in 6 ways, for example, as 3219494547025 + 1188926363641 = 1794295^2 + 1090379^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3819401 + ... + 4837836.

Almost surely, 2^{4408420910666} is an apocalyptic number.

4408420910666 is a deficient number, since it is larger than the sum of its proper divisors (2624043975970).

4408420910666 is a wasteful number, since it uses less digits than its factorization.

4408420910666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8658154 (or 8658137 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 4408420910666 in words is "four trillion, four hundred eight billion, four hundred twenty million, nine hundred ten thousand, six hundred sixty-six".