6766651579 has 2 divisors, whose sum is σ = 6766651580. Its totient is φ = 6766651578.

The previous prime is 6766651547. The next prime is 6766651597. The reversal of 6766651579 is 9751566676.

Together with next prime (6766651597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6766651579 - 2⁵ = 6766651547 is a prime.

It is not a weakly prime, because it can be changed into another prime (6766651979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383325789 + 3383325790.

It is an arithmetic number, because the mean of its divisors is an integer number (3383325790).

Almost surely, 2^6766651579 is an apocalyptic number.

6766651579 is a deficient number, since it is larger than the sum of its proper divisors (1).

6766651579 is an equidigital number, since it uses as much as digits as its factorization.

6766651579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14288400, while the sum is 58.

The square root of 6766651579 is about 82259.6594875034. The cubic root of 6766651579 is about 1891.4343486875.

The spelling of 6766651579 in words is "six billion, seven hundred sixty-six million, six hundred fifty-one thousand, five hundred seventy-nine".