6546533321 has 16 divisors (see below), whose sum is σ = 6874758144. Its totient is φ = 6226599744.

The previous prime is 6546533251. The next prime is 6546533393. The reversal of 6546533321 is 1233356456.

It is a cyclic number.

It is not a de Polignac number, because 6546533321 - 2³⁰ = 5472791497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6546538321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916411 + ... + 1919823.

It is an arithmetic number, because the mean of its divisors is an integer number (429672384).

Almost surely, 2^6546533321 is an apocalyptic number.

It is an amenable number.

6546533321 is a deficient number, since it is larger than the sum of its proper divisors (328224823).

6546533321 is a wasteful number, since it uses less digits than its factorization.

6546533321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600.

The product of its digits is 194400, while the sum is 38.

The square root of 6546533321 is about 80910.6502322160. The cubic root of 6546533321 is about 1870.6984837670.

Adding to 6546533321 its reverse (1233356456), we get a palindrome (7779889777).

The spelling of 6546533321 in words is "six billion, five hundred forty-six million, five hundred thirty-three thousand, three hundred twenty-one".