6515166487 has 2 divisors, whose sum is σ = 6515166488. Its totient is φ = 6515166486.

The previous prime is 6515166431. The next prime is 6515166523. The reversal of 6515166487 is 7846615156.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6515166487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6515166487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6515166407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257583243 + 3257583244.

It is an arithmetic number, because the mean of its divisors is an integer number (3257583244).

Almost surely, 2^6515166487 is an apocalyptic number.

6515166487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6515166487 is an equidigital number, since it uses as much as digits as its factorization.

6515166487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 6515166487 is about 80716.5812395446. The cubic root of 6515166487 is about 1867.7059658486.

The spelling of 6515166487 in words is "six billion, five hundred fifteen million, one hundred sixty-six thousand, four hundred eighty-seven".