545500909169 has 2 divisors, whose sum is σ = 545500909170. Its totient is φ = 545500909168.

The previous prime is 545500909111. The next prime is 545500909199. The reversal of 545500909169 is 961909005545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367100268544 + 178400640625 = 605888^2 + 422375^2 .

It is a cyclic number.

It is not a de Polignac number, because 545500909169 - 2⁸ = 545500908913 is a prime.

It is a super-2 number, since 2×545500909169² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 545500909169.

It is not a weakly prime, because it can be changed into another prime (545500909199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272750454584 + 272750454585.

It is an arithmetic number, because the mean of its divisors is an integer number (272750454585).

Almost surely, 2^545500909169 is an apocalyptic number.

It is an amenable number.

545500909169 is a deficient number, since it is larger than the sum of its proper divisors (1).

545500909169 is an equidigital number, since it uses as much as digits as its factorization.

545500909169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187000, while the sum is 53.

The spelling of 545500909169 in words is "five hundred forty-five billion, five hundred million, nine hundred nine thousand, one hundred sixty-nine".