6500500605631 has 2 divisors, whose sum is σ = 6500500605632. Its totient is φ = 6500500605630.

The previous prime is 6500500605629. The next prime is 6500500605721. The reversal of 6500500605631 is 1365060050056.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6500500605631 - 2¹ = 6500500605629 is a prime.

It is a super-2 number, since 2×6500500605631² (a number of 26 digits) contains 22 as substring.

Together with 6500500605629, 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 (6500500605601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250250302815 + 3250250302816.

It is an arithmetic number, because the mean of its divisors is an integer number (3250250302816).

Almost surely, 2^{6500500605631} is an apocalyptic number.

6500500605631 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500500605631 is an equidigital number, since it uses as much as digits as its factorization.

6500500605631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 6500500605631 its reverse (1365060050056), we get a palindrome (7865560655687).

The spelling of 6500500605631 in words is "six trillion, five hundred billion, five hundred million, six hundred five thousand, six hundred thirty-one".