7666542311 has 2 divisors, whose sum is σ = 7666542312. Its totient is φ = 7666542310.

The previous prime is 7666542293. The next prime is 7666542319. The reversal of 7666542311 is 1132456667.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7666542311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7666542319) 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, 3833271155 + 3833271156.

It is an arithmetic number, because the mean of its divisors is an integer number (3833271156).

Almost surely, 2^7666542311 is an apocalyptic number.

7666542311 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666542311 is an equidigital number, since it uses as much as digits as its factorization.

7666542311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 7666542311 is about 87558.7934533134. The cubic root of 7666542311 is about 1971.8165719633.

Adding to 7666542311 its reverse (1132456667), we get a palindrome (8798998978).

The spelling of 7666542311 in words is "seven billion, six hundred sixty-six million, five hundred forty-two thousand, three hundred eleven".