6567282661 has 2 divisors, whose sum is σ = 6567282662. Its totient is φ = 6567282660.

The previous prime is 6567282647. The next prime is 6567282691. The reversal of 6567282661 is 1662827656.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6565050625 + 2232036 = 81025^2 + 1494^2 .

It is a cyclic number.

It is not a de Polignac number, because 6567282661 - 2⁹ = 6567282149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6567282691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283641330 + 3283641331.

It is an arithmetic number, because the mean of its divisors is an integer number (3283641331).

Almost surely, 2^6567282661 is an apocalyptic number.

It is an amenable number.

6567282661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6567282661 is an equidigital number, since it uses as much as digits as its factorization.

6567282661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 6567282661 is about 81038.7725783159. The cubic root of 6567282661 is about 1872.6728020809.

The spelling of 6567282661 in words is "six billion, five hundred sixty-seven million, two hundred eighty-two thousand, six hundred sixty-one".