506434356561667 has 2 divisors, whose sum is σ = 506434356561668. Its totient is φ = 506434356561666.

The previous prime is 506434356561607. The next prime is 506434356561751. The reversal of 506434356561667 is 766165653434605.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506434356561667 is a prime.

It is not a weakly prime, because it can be changed into another prime (506434356561607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253217178280833 + 253217178280834.

It is an arithmetic number, because the mean of its divisors is an integer number (253217178280834).

Almost surely, 2^{506434356561667} is an apocalyptic number.

506434356561667 is a deficient number, since it is larger than the sum of its proper divisors (1).

506434356561667 is an equidigital number, since it uses as much as digits as its factorization.

506434356561667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776000, while the sum is 67.

The spelling of 506434356561667 in words is "five hundred six trillion, four hundred thirty-four billion, three hundred fifty-six million, five hundred sixty-one thousand, six hundred sixty-seven".