663259645982 has 8 divisors (see below), whose sum is σ = 994894358952. Its totient is φ = 331628193000.

The previous prime is 663259645963. The next prime is 663259645991. The reversal of 663259645982 is 289546952366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219269 + ... + 1172432.

It is an arithmetic number, because the mean of its divisors is an integer number (124361794869).

Almost surely, 2^663259645982 is an apocalyptic number.

663259645982 is a deficient number, since it is larger than the sum of its proper divisors (331634712970).

663259645982 is a wasteful number, since it uses less digits than its factorization.

663259645982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629994.

The product of its digits is 167961600, while the sum is 65.

The spelling of 663259645982 in words is "six hundred sixty-three billion, two hundred fifty-nine million, six hundred forty-five thousand, nine hundred eighty-two".