6616226317 has 4 divisors (see below), whose sum is σ = 6617805436. Its totient is φ = 6614647200.

The previous prime is 6616226297. The next prime is 6616226339. The reversal of 6616226317 is 7136226166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7136226166 = 2 ⋅3568113083.

It can be written as a sum of positive squares in 2 ways, for example, as 3843256036 + 2772970281 = 61994^2 + 52659^2 .

It is a cyclic number.

It is not a de Polignac number, because 6616226317 - 2¹¹ = 6616224269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6616226317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616226387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783258 + ... + 791659.

It is an arithmetic number, because the mean of its divisors is an integer number (1654451359).

Almost surely, 2^6616226317 is an apocalyptic number.

It is an amenable number.

6616226317 is a deficient number, since it is larger than the sum of its proper divisors (1579119).

6616226317 is a wasteful number, since it uses less digits than its factorization.

6616226317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579118.

The product of its digits is 108864, while the sum is 40.

The square root of 6616226317 is about 81340.1888183203. The cubic root of 6616226317 is about 1877.3134174984.

The spelling of 6616226317 in words is "six billion, six hundred sixteen million, two hundred twenty-six thousand, three hundred seventeen".