204447000064 has 80 divisors (see below), whose sum is σ = 410200674048. Its totient is φ = 101797742592.

The previous prime is 204447000049. The next prime is 204447000103. The reversal of 204447000064 is 460000744402.

204447000064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230492229 + ... + 230493115.

Almost surely, 2^204447000064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204447000064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205100337024).

204447000064 is an abundant number, since it is smaller than the sum of its proper divisors (205753673984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204447000064 is an frugal number, since it uses more digits than its factorization.

204447000064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

Adding to 204447000064 its reverse (460000744402), we get a palindrome (664447744466).

The spelling of 204447000064 in words is "two hundred four billion, four hundred forty-seven million, sixty-four", and thus it is an aban number.