216226920563 has 2 divisors, whose sum is σ = 216226920564. Its totient is φ = 216226920562.

The previous prime is 216226920521. The next prime is 216226920587. The reversal of 216226920563 is 365029622612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216226920563 - 2⁸ = 216226920307 is a prime.

It is not a weakly prime, because it can be changed into another prime (216226920593) 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, 108113460281 + 108113460282.

It is an arithmetic number, because the mean of its divisors is an integer number (108113460282).

Almost surely, 2^216226920563 is an apocalyptic number.

216226920563 is a deficient number, since it is larger than the sum of its proper divisors (1).

216226920563 is an equidigital number, since it uses as much as digits as its factorization.

216226920563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 216226920563 in words is "two hundred sixteen billion, two hundred twenty-six million, nine hundred twenty thousand, five hundred sixty-three".