63561066730641 has 96 divisors (see below), whose sum is σ = 100565976176640. Its totient is φ = 38510770636800.

The previous prime is 63561066730633. The next prime is 63561066730643. The reversal of 63561066730641 is 14603766016536.

63561066730641 is a `hidden beast` number, since 6 + 3 + 561 + 0 + 6 + 6 + 7 + 30 + 6 + 41 = 666.

It is not a de Polignac number, because 63561066730641 - 2³ = 63561066730633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63561066730643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5357919276 + ... + 5357931138.

It is an arithmetic number, because the mean of its divisors is an integer number (1047562251840).

Almost surely, 2^{63561066730641} is an apocalyptic number.

It is an amenable number.

63561066730641 is a deficient number, since it is larger than the sum of its proper divisors (37004909445999).

63561066730641 is a wasteful number, since it uses less digits than its factorization.

63561066730641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287 (or 14284 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 63561066730641 in words is "sixty-three trillion, five hundred sixty-one billion, sixty-six million, seven hundred thirty thousand, six hundred forty-one".