6166669 has 2 divisors, whose sum is σ = 6166670. Its totient is φ = 6166668.

The previous prime is 6166639. The next prime is 6166681. The reversal of 6166669 is 9666616.

It is a happy number.

6166669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 2518569 = 1910^2 + 1587^2 .

It is a cyclic number.

It is not a de Polignac number, because 6166669 - 2⁵ = 6166637 is a prime.

It is a super-2 number, since 2×6166669² = 76055613111122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6166609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3083334 + 3083335.

It is an arithmetic number, because the mean of its divisors is an integer number (3083335).

Almost surely, 2^6166669 is an apocalyptic number.

It is an amenable number.

6166669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6166669 is an equidigital number, since it uses as much as digits as its factorization.

6166669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 6166669 is about 2483.2778741011. The cubic root of 6166669 is about 183.3792586508.

The spelling of 6166669 in words is "six million, one hundred sixty-six thousand, six hundred sixty-nine".