6544027161 has 24 divisors (see below), whose sum is σ = 11175353280. Its totient is φ = 3610496736.

The previous prime is 6544027159. The next prime is 6544027199. The reversal of 6544027161 is 1617204456.

It is not a de Polignac number, because 6544027161 - 2¹ = 6544027159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6544027121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1789095 + ... + 1792748.

It is an arithmetic number, because the mean of its divisors is an integer number (465639720).

Almost surely, 2^6544027161 is an apocalyptic number.

It is an amenable number.

6544027161 is a deficient number, since it is larger than the sum of its proper divisors (4631326119).

6544027161 is a wasteful number, since it uses less digits than its factorization.

6544027161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581885 (or 3581882 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 6544027161 is about 80895.1615425793. The cubic root of 6544027161 is about 1870.4597381660.

The spelling of 6544027161 in words is "six billion, five hundred forty-four million, twenty-seven thousand, one hundred sixty-one".