717228667216 has 40 divisors (see below), whose sum is σ = 1393421986664. Its totient is φ = 357636280320.

The previous prime is 717228667193. The next prime is 717228667219. The reversal of 717228667216 is 612766822717.

717228667216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60415673616 + 656812993600 = 245796^2 + 810440^2 .

It is a super-2 number, since 2×717228667216² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717228667219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42378436 + ... + 42395356.

Almost surely, 2^717228667216 is an apocalyptic number.

It is an amenable number.

717228667216 is a deficient number, since it is larger than the sum of its proper divisors (676193319448).

717228667216 is a wasteful number, since it uses less digits than its factorization.

717228667216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23999 (or 23993 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 55.

The spelling of 717228667216 in words is "seven hundred seventeen billion, two hundred twenty-eight million, six hundred sixty-seven thousand, two hundred sixteen".