6466956497 has 2 divisors, whose sum is σ = 6466956498. Its totient is φ = 6466956496.

The previous prime is 6466956473. The next prime is 6466956499. The reversal of 6466956497 is 7946596646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5188464961 + 1278491536 = 72031^2 + 35756^2 .

It is a cyclic number.

It is not a de Polignac number, because 6466956497 - 2²² = 6462762193 is a prime.

It is a super-2 number, since 2×6466956497² = 83643052668181022018, which contains 22 as substring.

Together with 6466956499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6466956499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233478248 + 3233478249.

It is an arithmetic number, because the mean of its divisors is an integer number (3233478249).

Almost surely, 2^6466956497 is an apocalyptic number.

It is an amenable number.

6466956497 is a deficient number, since it is larger than the sum of its proper divisors (1).

6466956497 is an equidigital number, since it uses as much as digits as its factorization.

6466956497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 62.

The square root of 6466956497 is about 80417.3892699831. The cubic root of 6466956497 is about 1863.0877621983.

The spelling of 6466956497 in words is "six billion, four hundred sixty-six million, nine hundred fifty-six thousand, four hundred ninety-seven".