216126563 has 2 divisors, whose sum is σ = 216126564. Its totient is φ = 216126562.

The previous prime is 216126553. The next prime is 216126613. The reversal of 216126563 is 365621612.

216126563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216126563 - 2¹⁴ = 216110179 is a prime.

It is not a weakly prime, because it can be changed into another prime (216126503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108063281 + 108063282.

It is an arithmetic number, because the mean of its divisors is an integer number (108063282).

Almost surely, 2^216126563 is an apocalyptic number.

216126563 is a deficient number, since it is larger than the sum of its proper divisors (1).

216126563 is an equidigital number, since it uses as much as digits as its factorization.

216126563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 216126563 is about 14701.2435868535. The cubic root of 216126563 is about 600.1171650820.

The spelling of 216126563 in words is "two hundred sixteen million, one hundred twenty-six thousand, five hundred sixty-three".