500056561663 has 2 divisors, whose sum is σ = 500056561664. Its totient is φ = 500056561662.

The previous prime is 500056561661. The next prime is 500056561673. The reversal of 500056561663 is 366165650005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500056561663 - 2¹ = 500056561661 is a prime.

Together with 500056561661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500056561661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250028280831 + 250028280832.

It is an arithmetic number, because the mean of its divisors is an integer number (250028280832).

Almost surely, 2^500056561663 is an apocalyptic number.

500056561663 is a deficient number, since it is larger than the sum of its proper divisors (1).

500056561663 is an equidigital number, since it uses as much as digits as its factorization.

500056561663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 500056561663 in words is "five hundred billion, fifty-six million, five hundred sixty-one thousand, six hundred sixty-three".