217022164382563 has 2 divisors, whose sum is σ = 217022164382564. Its totient is φ = 217022164382562.

The previous prime is 217022164382549. The next prime is 217022164382579. The reversal of 217022164382563 is 365283461220712.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 217022164382563 - 2¹³ = 217022164374371 is a prime.

It is a super-3 number, since 3×217022164382563³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 217022164382563.

It is not a weakly prime, because it can be changed into another prime (217022164382593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108511082191281 + 108511082191282.

It is an arithmetic number, because the mean of its divisors is an integer number (108511082191282).

Almost surely, 2^{217022164382563} is an apocalyptic number.

217022164382563 is a deficient number, since it is larger than the sum of its proper divisors (1).

217022164382563 is an equidigital number, since it uses as much as digits as its factorization.

217022164382563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 217022164382563 in words is "two hundred seventeen trillion, twenty-two billion, one hundred sixty-four million, three hundred eighty-two thousand, five hundred sixty-three".