663007602717344 has 12 divisors (see below), whose sum is σ = 1305296217849834. Its totient is φ = 331503801358656.

The previous prime is 663007602717283. The next prime is 663007602717359. The reversal of 663007602717344 is 443717206700366.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 455242477033744 + 207765125683600 = 21336412^2 + 14414060^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 663007602717344.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10359493792427 + ... + 10359493792490.

Almost surely, 2^{663007602717344} is an apocalyptic number.

It is an amenable number.

663007602717344 is a deficient number, since it is larger than the sum of its proper divisors (642288615132490).

663007602717344 is a wasteful number, since it uses less digits than its factorization.

663007602717344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20718987584927 (or 20718987584919 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 663007602717344 in words is "six hundred sixty-three trillion, seven billion, six hundred two million, seven hundred seventeen thousand, three hundred forty-four".