663470051768 has 32 divisors (see below), whose sum is σ = 1320065553600. Its totient is φ = 311537974272.

The previous prime is 663470051753. The next prime is 663470051791. The reversal of 663470051768 is 867150074366.

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, 5275328 + ... + 5399631.

It is an arithmetic number, because the mean of its divisors is an integer number (41252048550).

Almost surely, 2^663470051768 is an apocalyptic number.

663470051768 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

663470051768 is a deficient number, since it is larger than the sum of its proper divisors (656595501832).

663470051768 is a wasteful number, since it uses less digits than its factorization.

663470051768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675439 (or 10675435 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 663470051768 in words is "six hundred sixty-three billion, four hundred seventy million, fifty-one thousand, seven hundred sixty-eight".