51630316511663 has 2 divisors, whose sum is σ = 51630316511664. Its totient is φ = 51630316511662.

The previous prime is 51630316511561. The next prime is 51630316511693. The reversal of 51630316511663 is 36611561303615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51630316511663 - 2⁴⁰ = 50530804883887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51630316511693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25815158255831 + 25815158255832.

It is an arithmetic number, because the mean of its divisors is an integer number (25815158255832).

Almost surely, 2^{51630316511663} is an apocalyptic number.

51630316511663 is a deficient number, since it is larger than the sum of its proper divisors (1).

51630316511663 is an equidigital number, since it uses as much as digits as its factorization.

51630316511663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 47.

The spelling of 51630316511663 in words is "fifty-one trillion, six hundred thirty billion, three hundred sixteen million, five hundred eleven thousand, six hundred sixty-three".