6544930561 has 8 divisors (see below), whose sum is σ = 7095066944. Its totient is φ = 6001462800.

The previous prime is 6544930549. The next prime is 6544930619. The reversal of 6544930561 is 1650394456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6544930561 - 2²⁵ = 6511376129 is a prime.

It is a super-2 number, since 2×6544930561² = 85672232096623549442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6544937561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665111 + ... + 1669036.

It is an arithmetic number, because the mean of its divisors is an integer number (886883368).

Almost surely, 2^6544930561 is an apocalyptic number.

It is an amenable number.

6544930561 is a deficient number, since it is larger than the sum of its proper divisors (550136383).

6544930561 is a wasteful number, since it uses less digits than its factorization.

6544930561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334311.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 6544930561 is about 80900.7451201780. The cubic root of 6544930561 is about 1870.5458062468.

The spelling of 6544930561 in words is "six billion, five hundred forty-four million, nine hundred thirty thousand, five hundred sixty-one".