6517496651 has 2 divisors, whose sum is σ = 6517496652. Its totient is φ = 6517496650.

The previous prime is 6517496647. The next prime is 6517496659. The reversal of 6517496651 is 1566947156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6517496651 - 2² = 6517496647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6517496651.

It is not a weakly prime, because it can be changed into another prime (6517496659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3258748325 + 3258748326.

It is an arithmetic number, because the mean of its divisors is an integer number (3258748326).

Almost surely, 2^6517496651 is an apocalyptic number.

6517496651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6517496651 is an equidigital number, since it uses as much as digits as its factorization.

6517496651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 50.

The square root of 6517496651 is about 80731.0141829025. The cubic root of 6517496651 is about 1867.9286023933.

The spelling of 6517496651 in words is "six billion, five hundred seventeen million, four hundred ninety-six thousand, six hundred fifty-one".