64544324223 has 8 divisors (see below), whose sum is σ = 87517728000. Its totient is φ = 42300234968.

The previous prime is 64544324203. The next prime is 64544324227. The reversal of 64544324223 is 32242344546.

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 64544324223 - 2⁵ = 64544324191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64544324227) 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, 182328423 + ... + 182328776.

It is an arithmetic number, because the mean of its divisors is an integer number (10939716000).

Almost surely, 2^64544324223 is an apocalyptic number.

64544324223 is a deficient number, since it is larger than the sum of its proper divisors (22973403777).

64544324223 is a wasteful number, since it uses less digits than its factorization.

64544324223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364657261.

The product of its digits is 552960, while the sum is 39.

Adding to 64544324223 its reverse (32242344546), we get a palindrome (96786668769).

The spelling of 64544324223 in words is "sixty-four billion, five hundred forty-four million, three hundred twenty-four thousand, two hundred twenty-three".