6516454517 has 2 divisors, whose sum is σ = 6516454518. Its totient is φ = 6516454516.

The previous prime is 6516454499. The next prime is 6516454523. The reversal of 6516454517 is 7154546156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4289464036 + 2226990481 = 65494^2 + 47191^2 .

It is a cyclic number.

It is not a de Polignac number, because 6516454517 - 2¹⁴ = 6516438133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6516454537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3258227258 + 3258227259.

It is an arithmetic number, because the mean of its divisors is an integer number (3258227259).

Almost surely, 2^6516454517 is an apocalyptic number.

It is an amenable number.

6516454517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6516454517 is an equidigital number, since it uses as much as digits as its factorization.

6516454517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The square root of 6516454517 is about 80724.5595652277. The cubic root of 6516454517 is about 1867.8290378021.

The spelling of 6516454517 in words is "six billion, five hundred sixteen million, four hundred fifty-four thousand, five hundred seventeen".