16212305563 has 2 divisors, whose sum is σ = 16212305564. Its totient is φ = 16212305562.

The previous prime is 16212305539. The next prime is 16212305597. The reversal of 16212305563 is 36550321261.

16212305563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (16212305597) can be obtained adding 16212305563 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16212305563 is a prime.

It is not a weakly prime, because it can be changed into another prime (16212305363) 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 as a sum of consecutive naturals, namely, 8106152781 + 8106152782.

It is an arithmetic number, because the mean of its divisors is an integer number (8106152782).

Almost surely, 2^16212305563 is an apocalyptic number.

16212305563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16212305563 is an equidigital number, since it uses as much as digits as its factorization.

16212305563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 16212305563 in words is "sixteen billion, two hundred twelve million, three hundred five thousand, five hundred sixty-three".