6555445543 has 2 divisors, whose sum is σ = 6555445544. Its totient is φ = 6555445542.

The previous prime is 6555445541. The next prime is 6555445619. The reversal of 6555445543 is 3455445556.

6555445543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6555445543 - 2¹ = 6555445541 is a prime.

Together with 6555445541, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6555445493 and 6555445502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6555445541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277722771 + 3277722772.

It is an arithmetic number, because the mean of its divisors is an integer number (3277722772).

Almost surely, 2^6555445543 is an apocalyptic number.

6555445543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555445543 is an equidigital number, since it uses as much as digits as its factorization.

6555445543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600000, while the sum is 46.

The square root of 6555445543 is about 80965.7059686384. The cubic root of 6555445543 is about 1871.5470000471.

The spelling of 6555445543 in words is "six billion, five hundred fifty-five million, four hundred forty-five thousand, five hundred forty-three".