6765665111 has 2 divisors, whose sum is σ = 6765665112. Its totient is φ = 6765665110.

The previous prime is 6765665063. The next prime is 6765665131. The reversal of 6765665111 is 1115665676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6765665111 - 2¹⁸ = 6765402967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6765665131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382832555 + 3382832556.

It is an arithmetic number, because the mean of its divisors is an integer number (3382832556).

Almost surely, 2^6765665111 is an apocalyptic number.

6765665111 is a deficient number, since it is larger than the sum of its proper divisors (1).

6765665111 is an equidigital number, since it uses as much as digits as its factorization.

6765665111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 6765665111 is about 82253.6632071788. The cubic root of 6765665111 is about 1891.3424307418.

The spelling of 6765665111 in words is "six billion, seven hundred sixty-five million, six hundred sixty-five thousand, one hundred eleven".