6705722165543 has 2 divisors, whose sum is σ = 6705722165544. Its totient is φ = 6705722165542.

The previous prime is 6705722165479. The next prime is 6705722165581. The reversal of 6705722165543 is 3455612275076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6705722165543 - 2⁶ = 6705722165479 is a prime.

It is a super-2 number, since 2×6705722165543² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6705722165243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352861082771 + 3352861082772.

It is an arithmetic number, because the mean of its divisors is an integer number (3352861082772).

Almost surely, 2^{6705722165543} is an apocalyptic number.

6705722165543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6705722165543 is an equidigital number, since it uses as much as digits as its factorization.

6705722165543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 6705722165543 in words is "six trillion, seven hundred five billion, seven hundred twenty-two million, one hundred sixty-five thousand, five hundred forty-three".