7666606567 has 2 divisors, whose sum is σ = 7666606568. Its totient is φ = 7666606566.

The previous prime is 7666606513. The next prime is 7666606589. The reversal of 7666606567 is 7656066667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7666606567 - 2¹⁵ = 7666573799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7666606067) 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, 3833303283 + 3833303284.

It is an arithmetic number, because the mean of its divisors is an integer number (3833303284).

Almost surely, 2^7666606567 is an apocalyptic number.

7666606567 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666606567 is an equidigital number, since it uses as much as digits as its factorization.

7666606567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The square root of 7666606567 is about 87559.1603831375. The cubic root of 7666606567 is about 1971.8220807784.

The spelling of 7666606567 in words is "seven billion, six hundred sixty-six million, six hundred six thousand, five hundred sixty-seven".