663612032440444 has 24 divisors (see below), whose sum is σ = 1216883625108480. Its totient is φ = 316051719278064.

The previous prime is 663612032440417. The next prime is 663612032440507. The reversal of 663612032440444 is 444044230216366.

It is a congruent number.

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, 15090300744 + ... + 15090344719.

It is an arithmetic number, because the mean of its divisors is an integer number (50703484379520).

Almost surely, 2^{663612032440444} is an apocalyptic number.

It is an amenable number.

663612032440444 is a deficient number, since it is larger than the sum of its proper divisors (553271592668036).

663612032440444 is a wasteful number, since it uses less digits than its factorization.

663612032440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30180645729 (or 30180645727 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 49.

The spelling of 663612032440444 in words is "six hundred sixty-three trillion, six hundred twelve billion, thirty-two million, four hundred forty thousand, four hundred forty-four".