545668315243 has 2 divisors, whose sum is σ = 545668315244. Its totient is φ = 545668315242.

The previous prime is 545668315219. The next prime is 545668315249. The reversal of 545668315243 is 342513866545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545668315243 - 2²¹ = 545666218091 is a prime.

It is a super-2 number, since 2×545668315243² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545668315249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272834157621 + 272834157622.

It is an arithmetic number, because the mean of its divisors is an integer number (272834157622).

Almost surely, 2^545668315243 is an apocalyptic number.

545668315243 is a deficient number, since it is larger than the sum of its proper divisors (1).

545668315243 is an equidigital number, since it uses as much as digits as its factorization.

545668315243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368000, while the sum is 52.

The spelling of 545668315243 in words is "five hundred forty-five billion, six hundred sixty-eight million, three hundred fifteen thousand, two hundred forty-three".