6549600668 has 24 divisors (see below), whose sum is σ = 12463327968. Its totient is φ = 2993541696.

The previous prime is 6549600649. The next prime is 6549600677. The reversal of 6549600668 is 8660069456.

It is a super-3 number, since 3×6549600668³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 606071 + ... + 616782.

It is an arithmetic number, because the mean of its divisors is an integer number (519305332).

Almost surely, 2^6549600668 is an apocalyptic number.

It is an amenable number.

6549600668 is a deficient number, since it is larger than the sum of its proper divisors (5913727300).

6549600668 is a wasteful number, since it uses less digits than its factorization.

6549600668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222973 (or 1222971 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 6549600668 is about 80929.6031622545. The cubic root of 6549600668 is about 1870.9906071017.

The spelling of 6549600668 in words is "six billion, five hundred forty-nine million, six hundred thousand, six hundred sixty-eight".