501630456659 has 2 divisors, whose sum is σ = 501630456660. Its totient is φ = 501630456658.

The previous prime is 501630456541. The next prime is 501630456683. The reversal of 501630456659 is 956654036105.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 501630456659 - 2²⁰ = 501629408083 is a prime.

It is not a weakly prime, because it can be changed into another prime (501630426659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250815228329 + 250815228330.

It is an arithmetic number, because the mean of its divisors is an integer number (250815228330).

Almost surely, 2^501630456659 is an apocalyptic number.

501630456659 is a deficient number, since it is larger than the sum of its proper divisors (1).

501630456659 is an equidigital number, since it uses as much as digits as its factorization.

501630456659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 501630456659 in words is "five hundred one billion, six hundred thirty million, four hundred fifty-six thousand, six hundred fifty-nine".