505011666067 has 2 divisors, whose sum is σ = 505011666068. Its totient is φ = 505011666066.

The previous prime is 505011666043. The next prime is 505011666077. The reversal of 505011666067 is 760666110505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505011666067 is a prime.

It is not a weakly prime, because it can be changed into another prime (505011666037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252505833033 + 252505833034.

It is an arithmetic number, because the mean of its divisors is an integer number (252505833034).

Almost surely, 2^505011666067 is an apocalyptic number.

505011666067 is a deficient number, since it is larger than the sum of its proper divisors (1).

505011666067 is an equidigital number, since it uses as much as digits as its factorization.

505011666067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 505011666067 in words is "five hundred five billion, eleven million, six hundred sixty-six thousand, sixty-seven".