6544642201 has 16 divisors (see below), whose sum is σ = 7111843200. Its totient is φ = 5999609088.

The previous prime is 6544642199. The next prime is 6544642211. The reversal of 6544642201 is 1022464456.

It is a cyclic number.

It is not a de Polignac number, because 6544642201 - 2¹ = 6544642199 is a prime.

It is a super-3 number, since 3×6544642201³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6544642211) 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, 79396 + ... + 139258.

It is an arithmetic number, because the mean of its divisors is an integer number (444490200).

Almost surely, 2^6544642201 is an apocalyptic number.

It is an amenable number.

6544642201 is a deficient number, since it is larger than the sum of its proper divisors (567200999).

6544642201 is a wasteful number, since it uses less digits than its factorization.

6544642201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60048.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 6544642201 is about 80898.9629167148. The cubic root of 6544642201 is about 1870.5183346790.

The spelling of 6544642201 in words is "six billion, five hundred forty-four million, six hundred forty-two thousand, two hundred one".