666463244 has 6 divisors (see below), whose sum is σ = 1166310684. Its totient is φ = 333231620.

The previous prime is 666463229. The next prime is 666463261. The reversal of 666463244 is 442364666.

666463244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83307902 + ... + 83307909.

It is an arithmetic number, because the mean of its divisors is an integer number (194385114).

Almost surely, 2^666463244 is an apocalyptic number.

It is an amenable number.

666463244 is a deficient number, since it is larger than the sum of its proper divisors (499847440).

666463244 is a wasteful number, since it uses less digits than its factorization.

666463244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166615815 (or 166615813 counting only the distinct ones).

The product of its digits is 497664, while the sum is 41.

The square root of 666463244 is about 25815.9494111683. The cubic root of 666463244 is about 873.4916026636.

The spelling of 666463244 in words is "six hundred sixty-six million, four hundred sixty-three thousand, two hundred forty-four".