573217066321 has 3 divisors (see below), whose sum is σ = 573217823433. Its totient is φ = 573216309210.

The previous prime is 573217066273. The next prime is 573217066349. The reversal of 573217066321 is 123660712375.

The square root of 573217066321 is 757111.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 573217066321 - 2¹³ = 573217058129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573217066361) 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 2 ways as a sum of consecutive naturals, for example, 378556 + ... + 1135666.

It is an arithmetic number, because the mean of its divisors is an integer number (191072607811).

Almost surely, 2^573217066321 is an apocalyptic number.

573217066321 is the 757111-st square number.

573217066321 is the 378556-th centered octagonal number.

It is an amenable number.

573217066321 is a deficient number, since it is larger than the sum of its proper divisors (757112).

573217066321 is an frugal number, since it uses more digits than its factorization.

573217066321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514222 (or 757111 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

Adding to 573217066321 its reverse (123660712375), we get a palindrome (696877778696).

The spelling of 573217066321 in words is "five hundred seventy-three billion, two hundred seventeen million, sixty-six thousand, three hundred twenty-one".