63716866085 has 8 divisors (see below), whose sum is σ = 76461801336. Its totient is φ = 50972451520.

The previous prime is 63716866063. The next prime is 63716866117. The reversal of 63716866085 is 58066861736.

It is a happy number.

63716866085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 252422²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 10411753444 + 53305112641 = 102038^2 + 230879^2 .

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

It is not a de Polignac number, because 63716866085 - 2⁸ = 63716865829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63716866085.

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, 229295 + ... + 424275.

It is an arithmetic number, because the mean of its divisors is an integer number (9557725167).

Almost surely, 2^63716866085 is an apocalyptic number.

It is an amenable number.

63716866085 is a deficient number, since it is larger than the sum of its proper divisors (12744935251).

63716866085 is a wasteful number, since it uses less digits than its factorization.

63716866085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260343.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 63716866085 in words is "sixty-three billion, seven hundred sixteen million, eight hundred sixty-six thousand, eighty-five".