5531205165623 has 2 divisors, whose sum is σ = 5531205165624. Its totient is φ = 5531205165622.

The previous prime is 5531205165617. The next prime is 5531205165641. The reversal of 5531205165623 is 3265615021355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5531205165623 - 2¹⁸ = 5531204903479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531205161623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765602582811 + 2765602582812.

It is an arithmetic number, because the mean of its divisors is an integer number (2765602582812).

Almost surely, 2^{5531205165623} is an apocalyptic number.

5531205165623 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531205165623 is an equidigital number, since it uses as much as digits as its factorization.

5531205165623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 5531205165623 in words is "five trillion, five hundred thirty-one billion, two hundred five million, one hundred sixty-five thousand, six hundred twenty-three".