505060666511 has 2 divisors, whose sum is σ = 505060666512. Its totient is φ = 505060666510.

The previous prime is 505060666459. The next prime is 505060666531. The reversal of 505060666511 is 115666060505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505060666511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505060666531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252530333255 + 252530333256.

It is an arithmetic number, because the mean of its divisors is an integer number (252530333256).

Almost surely, 2^505060666511 is an apocalyptic number.

505060666511 is a deficient number, since it is larger than the sum of its proper divisors (1).

505060666511 is an equidigital number, since it uses as much as digits as its factorization.

505060666511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 505060666511 in words is "five hundred five billion, sixty million, six hundred sixty-six thousand, five hundred eleven".