63265722320 has 20 divisors (see below), whose sum is σ = 147092804580. Its totient is φ = 25306288896.

The previous prime is 63265722257. The next prime is 63265722323. The reversal of 63265722320 is 2322756236.

It can be written as a sum of positive squares in 2 ways, for example, as 43726155664 + 19539566656 = 209108^2 + 139784^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63265722323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395410685 + ... + 395410844.

It is an arithmetic number, because the mean of its divisors is an integer number (7354640229).

Almost surely, 2^63265722320 is an apocalyptic number.

It is an amenable number.

63265722320 is an abundant number, since it is smaller than the sum of its proper divisors (83827082260).

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

63265722320 is a wasteful number, since it uses less digits than its factorization.

63265722320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790821542 (or 790821536 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 63265722320 in words is "sixty-three billion, two hundred sixty-five million, seven hundred twenty-two thousand, three hundred twenty".