506656553642143 has 2 divisors, whose sum is σ = 506656553642144. Its totient is φ = 506656553642142.

The previous prime is 506656553642137. The next prime is 506656553642153. The reversal of 506656553642143 is 341246355656605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506656553642143 - 2⁹ = 506656553641631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506656553642153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253328276821071 + 253328276821072.

It is an arithmetic number, because the mean of its divisors is an integer number (253328276821072).

Almost surely, 2^{506656553642143} is an apocalyptic number.

506656553642143 is a deficient number, since it is larger than the sum of its proper divisors (1).

506656553642143 is an equidigital number, since it uses as much as digits as its factorization.

506656553642143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280000, while the sum is 61.

The spelling of 506656553642143 in words is "five hundred six trillion, six hundred fifty-six billion, five hundred fifty-three million, six hundred forty-two thousand, one hundred forty-three".