6667017349 has 2 divisors, whose sum is σ = 6667017350. Its totient is φ = 6667017348.

The previous prime is 6667017341. The next prime is 6667017389. The reversal of 6667017349 is 9437107666.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6666722500 + 294849 = 81650^2 + 543^2 .

It is a cyclic number.

It is not a de Polignac number, because 6667017349 - 2³ = 6667017341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667017341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333508674 + 3333508675.

It is an arithmetic number, because the mean of its divisors is an integer number (3333508675).

Almost surely, 2^6667017349 is an apocalyptic number.

It is an amenable number.

6667017349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667017349 is an equidigital number, since it uses as much as digits as its factorization.

6667017349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 6667017349 is about 81651.8055464789. The cubic root of 6667017349 is about 1882.1050576545.

The spelling of 6667017349 in words is "six billion, six hundred sixty-seven million, seventeen thousand, three hundred forty-nine".