6549061667 has 2 divisors, whose sum is σ = 6549061668. Its totient is φ = 6549061666.

The previous prime is 6549061633. The next prime is 6549061681. The reversal of 6549061667 is 7661609456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6549061667 - 2⁸ = 6549061411 is a prime.

It is not a weakly prime, because it can be changed into another prime (6549061627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274530833 + 3274530834.

It is an arithmetic number, because the mean of its divisors is an integer number (3274530834).

Almost surely, 2^6549061667 is an apocalyptic number.

6549061667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549061667 is an equidigital number, since it uses as much as digits as its factorization.

6549061667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 6549061667 is about 80926.2730329279. The cubic root of 6549061667 is about 1870.9392811494.

The spelling of 6549061667 in words is "six billion, five hundred forty-nine million, sixty-one thousand, six hundred sixty-seven".