63288716561 has 8 divisors (see below), whose sum is σ = 74284825920. Its totient is φ = 52781323248.

The previous prime is 63288716551. The next prime is 63288716587. The reversal of 63288716561 is 16561788236.

63288716561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63288716561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63288716551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122178731 + ... + 122179248.

It is an arithmetic number, because the mean of its divisors is an integer number (9285603240).

Almost surely, 2^63288716561 is an apocalyptic number.

It is an amenable number.

63288716561 is a deficient number, since it is larger than the sum of its proper divisors (10996109359).

63288716561 is a wasteful number, since it uses less digits than its factorization.

63288716561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244358023.

The product of its digits is 2903040, while the sum is 53.

The spelling of 63288716561 in words is "sixty-three billion, two hundred eighty-eight million, seven hundred sixteen thousand, five hundred sixty-one".