6549105616 has 10 divisors (see below), whose sum is σ = 12688892162. Its totient is φ = 3274552800.

The previous prime is 6549105613. The next prime is 6549105659. The reversal of 6549105616 is 6165019456.

It can be written as a sum of positive squares in only one way, i.e., 5372890000 + 1176215616 = 73300^2 + 34296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549105613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204659535 + ... + 204659566.

Almost surely, 2^6549105616 is an apocalyptic number.

It is an amenable number.

6549105616 is a deficient number, since it is larger than the sum of its proper divisors (6139786546).

6549105616 is a wasteful number, since it uses less digits than its factorization.

6549105616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409319109 (or 409319103 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 6549105616 is about 80926.5445697516. The cubic root of 6549105616 is about 1870.9434662643.

The spelling of 6549105616 in words is "six billion, five hundred forty-nine million, one hundred five thousand, six hundred sixteen".