516144340423241 has 2 divisors, whose sum is σ = 516144340423242. Its totient is φ = 516144340423240.

The previous prime is 516144340423223. The next prime is 516144340423331. The reversal of 516144340423241 is 142324043441615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462790022628025 + 53354317795216 = 21512555^2 + 7304404^2 .

It is a cyclic number.

It is not a de Polignac number, because 516144340423241 - 2⁶ = 516144340423177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 516144340423192 and 516144340423201.

It is not a weakly prime, because it can be changed into another prime (516144340423741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258072170211620 + 258072170211621.

It is an arithmetic number, because the mean of its divisors is an integer number (258072170211621).

Almost surely, 2^{516144340423241} is an apocalyptic number.

It is an amenable number.

516144340423241 is a deficient number, since it is larger than the sum of its proper divisors (1).

516144340423241 is an equidigital number, since it uses as much as digits as its factorization.

516144340423241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 44.

Adding to 516144340423241 its reverse (142324043441615), we get a palindrome (658468383864856).

The spelling of 516144340423241 in words is "five hundred sixteen trillion, one hundred forty-four billion, three hundred forty million, four hundred twenty-three thousand, two hundred forty-one".