6466442040464 has 40 divisors (see below), whose sum is σ = 14812293351360. Its totient is φ = 2675769118848.

The previous prime is 6466442040449. The next prime is 6466442040491. The reversal of 6466442040464 is 4640402446646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995446574 + ... + 995453069.

It is an arithmetic number, because the mean of its divisors is an integer number (370307333784).

Almost surely, 2^{6466442040464} is an apocalyptic number.

It is an amenable number.

6466442040464 is an abundant number, since it is smaller than the sum of its proper divisors (8345851310896).

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

6466442040464 is a wasteful number, since it uses less digits than its factorization.

6466442040464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990899687 (or 1990899681 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 50.

The spelling of 6466442040464 in words is "six trillion, four hundred sixty-six billion, four hundred forty-two million, forty thousand, four hundred sixty-four".