506065320491 has 2 divisors, whose sum is σ = 506065320492. Its totient is φ = 506065320490.

The previous prime is 506065320433. The next prime is 506065320521. The reversal of 506065320491 is 194023560605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506065320491 - 2¹⁰ = 506065319467 is a prime.

It is a super-2 number, since 2×506065320491² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (506065370491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253032660245 + 253032660246.

It is an arithmetic number, because the mean of its divisors is an integer number (253032660246).

Almost surely, 2^506065320491 is an apocalyptic number.

506065320491 is a deficient number, since it is larger than the sum of its proper divisors (1).

506065320491 is an equidigital number, since it uses as much as digits as its factorization.

506065320491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 506065320491 in words is "five hundred six billion, sixty-five million, three hundred twenty thousand, four hundred ninety-one".