6566499131 has 2 divisors, whose sum is σ = 6566499132. Its totient is φ = 6566499130.

The previous prime is 6566499119. The next prime is 6566499133. The reversal of 6566499131 is 1319946656.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6566499131 is a prime.

It is a super-2 number, since 2×6566499131² = 86237821674847510322, which contains 22 as substring.

Together with 6566499133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6566499131.

It is not a weakly prime, because it can be changed into another prime (6566499133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283249565 + 3283249566.

It is an arithmetic number, because the mean of its divisors is an integer number (3283249566).

Almost surely, 2^6566499131 is an apocalyptic number.

6566499131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6566499131 is an equidigital number, since it uses as much as digits as its factorization.

6566499131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 50.

The square root of 6566499131 is about 81033.9381432249. The cubic root of 6566499131 is about 1872.5983241091.

The spelling of 6566499131 in words is "six billion, five hundred sixty-six million, four hundred ninety-nine thousand, one hundred thirty-one".