505563645151 has 2 divisors, whose sum is σ = 505563645152. Its totient is φ = 505563645150.

The previous prime is 505563645143. The next prime is 505563645179. The reversal of 505563645151 is 151546365505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505563645151 - 2³ = 505563645143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505563645121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252781822575 + 252781822576.

It is an arithmetic number, because the mean of its divisors is an integer number (252781822576).

Almost surely, 2^505563645151 is an apocalyptic number.

505563645151 is a deficient number, since it is larger than the sum of its proper divisors (1).

505563645151 is an equidigital number, since it uses as much as digits as its factorization.

505563645151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 505563645151 in words is "five hundred five billion, five hundred sixty-three million, six hundred forty-five thousand, one hundred fifty-one".