663720060505710 has 32 divisors (see below), whose sum is σ = 1715461079461920. Its totient is φ = 163377245662848.

The previous prime is 663720060505699. The next prime is 663720060505769. The reversal of 663720060505710 is 17505060027366.

It is a self number, because there is not a number n which added to its sum of digits gives 663720060505710.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850923154105 + ... + 850923154884.

It is an arithmetic number, because the mean of its divisors is an integer number (53608158733185).

Almost surely, 2^{663720060505710} is an apocalyptic number.

663720060505710 is an abundant number, since it is smaller than the sum of its proper divisors (1051741018956210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663720060505710 is a wasteful number, since it uses less digits than its factorization.

663720060505710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701846309012.

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 663720060505710 in words is "six hundred sixty-three trillion, seven hundred twenty billion, sixty million, five hundred five thousand, seven hundred ten".