4161543143437 has 2 divisors, whose sum is σ = 4161543143438. Its totient is φ = 4161543143436.

The previous prime is 4161543143431. The next prime is 4161543143473. The reversal of 4161543143437 is 7343413451614.

Together with next prime (4161543143473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4062103197156 + 99439946281 = 2015466^2 + 315341^2 .

It is a cyclic number.

It is not a de Polignac number, because 4161543143437 - 2¹⁹ = 4161542619149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4161543143431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080771571718 + 2080771571719.

It is an arithmetic number, because the mean of its divisors is an integer number (2080771571719).

Almost surely, 2^{4161543143437} is an apocalyptic number.

It is an amenable number.

4161543143437 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161543143437 is an equidigital number, since it uses as much as digits as its factorization.

4161543143437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 46.

The spelling of 4161543143437 in words is "four trillion, one hundred sixty-one billion, five hundred forty-three million, one hundred forty-three thousand, four hundred thirty-seven".