63701612560 has 40 divisors (see below), whose sum is σ = 156818384856. Its totient is φ = 23981783040.

The previous prime is 63701612497. The next prime is 63701612561. The reversal of 63701612560 is 6521610736.

It can be written as a sum of positive squares in 4 ways, for example, as 3805902864 + 59895709696 = 61692^2 + 244736^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (63701612561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23418351 + ... + 23421070.

Almost surely, 2^63701612560 is an apocalyptic number.

It is an amenable number.

63701612560 is an abundant number, since it is smaller than the sum of its proper divisors (93116772296).

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

63701612560 is a wasteful number, since it uses less digits than its factorization.

63701612560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46839451 (or 46839445 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 63701612560 in words is "sixty-three billion, seven hundred one million, six hundred twelve thousand, five hundred sixty".