217223380823603 has 16 divisors (see below), whose sum is σ = 270937128946176. Its totient is φ = 169194238549440.

The previous prime is 217223380823599. The next prime is 217223380823611. The reversal of 217223380823603 is 306328083322712.

It is a cyclic number.

It is not a de Polignac number, because 217223380823603 - 2² = 217223380823599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (217223380826603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589260551 + ... + 589629072.

It is an arithmetic number, because the mean of its divisors is an integer number (16933570559136).

Almost surely, 2^{217223380823603} is an apocalyptic number.

217223380823603 is a deficient number, since it is larger than the sum of its proper divisors (53713748122573).

217223380823603 is a wasteful number, since it uses less digits than its factorization.

217223380823603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178892034.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 217223380823603 in words is "two hundred seventeen trillion, two hundred twenty-three billion, three hundred eighty million, eight hundred twenty-three thousand, six hundred three".