4221605045317 has 16 divisors (see below), whose sum is σ = 4715014436352. Its totient is φ = 3746562487920.

The previous prime is 4221605045293. The next prime is 4221605045323. The reversal of 4221605045317 is 7135405061224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221605045317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221605045317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221605045377) 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, 1507153 + ... + 3273334.

It is an arithmetic number, because the mean of its divisors is an integer number (294688402272).

Almost surely, 2^{4221605045317} is an apocalyptic number.

It is an amenable number.

4221605045317 is a deficient number, since it is larger than the sum of its proper divisors (493409391035).

4221605045317 is a wasteful number, since it uses less digits than its factorization.

4221605045317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782408.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 4221605045317 in words is "four trillion, two hundred twenty-one billion, six hundred five million, forty-five thousand, three hundred seventeen".