63560041911661 has 16 divisors (see below), whose sum is σ = 64191806553600. Its totient is φ = 62930515415040.

The previous prime is 63560041911637. The next prime is 63560041911671. The reversal of 63560041911661 is 16611914006536.

It is a cyclic number.

It is not a de Polignac number, because 63560041911661 - 2⁷ = 63560041911533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63560041911601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713790660 + ... + 1713827746.

It is an arithmetic number, because the mean of its divisors is an integer number (4011987909600).

Almost surely, 2^{63560041911661} is an apocalyptic number.

It is an amenable number.

63560041911661 is a deficient number, since it is larger than the sum of its proper divisors (631764641939).

63560041911661 is a wasteful number, since it uses less digits than its factorization.

63560041911661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66804.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 63560041911661 in words is "sixty-three trillion, five hundred sixty billion, forty-one million, nine hundred eleven thousand, six hundred sixty-one".