555145191710209 has 2 divisors, whose sum is σ = 555145191710210. Its totient is φ = 555145191710208.

The previous prime is 555145191710173. The next prime is 555145191710237. The reversal of 555145191710209 is 902017191541555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508645025985600 + 46500165724609 = 22553160^2 + 6819103^2 .

It is a cyclic number.

It is not a de Polignac number, because 555145191710209 - 2²³ = 555145183321601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 555145191710209.

It is not a weakly prime, because it can be changed into another prime (555145191710299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277572595855104 + 277572595855105.

It is an arithmetic number, because the mean of its divisors is an integer number (277572595855105).

Almost surely, 2^{555145191710209} is an apocalyptic number.

It is an amenable number.

555145191710209 is a deficient number, since it is larger than the sum of its proper divisors (1).

555145191710209 is an equidigital number, since it uses as much as digits as its factorization.

555145191710209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 55.

The spelling of 555145191710209 in words is "five hundred fifty-five trillion, one hundred forty-five billion, one hundred ninety-one million, seven hundred ten thousand, two hundred nine".