545330324321 has 2 divisors, whose sum is σ = 545330324322. Its totient is φ = 545330324320.

The previous prime is 545330324291. The next prime is 545330324353. The reversal of 545330324321 is 123423033545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371807257600 + 173523066721 = 609760^2 + 416561^2 .

It is a cyclic number.

It is not a de Polignac number, because 545330324321 - 2¹⁸ = 545330062177 is a prime.

It is a super-2 number, since 2×545330324321² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545330324621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272665162160 + 272665162161.

It is an arithmetic number, because the mean of its divisors is an integer number (272665162161).

Almost surely, 2^545330324321 is an apocalyptic number.

It is an amenable number.

545330324321 is a deficient number, since it is larger than the sum of its proper divisors (1).

545330324321 is an equidigital number, since it uses as much as digits as its factorization.

545330324321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 545330324321 its reverse (123423033545), we get a palindrome (668753357866).

The spelling of 545330324321 in words is "five hundred forty-five billion, three hundred thirty million, three hundred twenty-four thousand, three hundred twenty-one".