631632516006647 has 2 divisors, whose sum is σ = 631632516006648. Its totient is φ = 631632516006646.

The previous prime is 631632516006577. The next prime is 631632516006691. The reversal of 631632516006647 is 746600615236136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631632516006647 - 2⁸ = 631632516006391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 631632516006592 and 631632516006601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631632516006047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315816258003323 + 315816258003324.

It is an arithmetic number, because the mean of its divisors is an integer number (315816258003324).

Almost surely, 2^{631632516006647} is an apocalyptic number.

631632516006647 is a deficient number, since it is larger than the sum of its proper divisors (1).

631632516006647 is an equidigital number, since it uses as much as digits as its factorization.

631632516006647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 56.

The spelling of 631632516006647 in words is "six hundred thirty-one trillion, six hundred thirty-two billion, five hundred sixteen million, six thousand, six hundred forty-seven".