217603796216 has 32 divisors (see below), whose sum is σ = 408528746640. Its totient is φ = 108662888448.

The previous prime is 217603796213. The next prime is 217603796251. The reversal of 217603796216 is 612697306712.

217603796216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×217603796216² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217603796213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31025126 + ... + 31032138.

Almost surely, 2^217603796216 is an apocalyptic number.

It is an amenable number.

217603796216 is a deficient number, since it is larger than the sum of its proper divisors (190924950424).

217603796216 is a wasteful number, since it uses less digits than its factorization.

217603796216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423 (or 11419 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 217603796216 in words is "two hundred seventeen billion, six hundred three million, seven hundred ninety-six thousand, two hundred sixteen".