12216563032563 has 12 divisors (see below), whose sum is σ = 17646187904800. Its totient is φ = 8144356292496.

The previous prime is 12216563032561. The next prime is 12216563032567. The reversal of 12216563032563 is 36523036561221.

12216563032563 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 6 + 5 + 630 + 3 + 2 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 12216563032563 - 2¹ = 12216563032561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12216563032561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3244038 + ... + 5912436.

Almost surely, 2^{12216563032563} is an apocalyptic number.

12216563032563 is a deficient number, since it is larger than the sum of its proper divisors (5429624872237).

12216563032563 is a wasteful number, since it uses less digits than its factorization.

12216563032563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177098 (or 3177095 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

Adding to 12216563032563 its reverse (36523036561221), we get a palindrome (48739599593784).

The spelling of 12216563032563 in words is "twelve trillion, two hundred sixteen billion, five hundred sixty-three million, thirty-two thousand, five hundred sixty-three".