204444666620016 has 20 divisors (see below), whose sum is σ = 528148722101832. Its totient is φ = 68148222206656.

The previous prime is 204444666619997. The next prime is 204444666620041. The reversal of 204444666620016 is 610026666444402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129631943911 + ... + 2129631944006.

Almost surely, 2^{204444666620016} is an apocalyptic number.

It is an amenable number.

204444666620016 is an abundant number, since it is smaller than the sum of its proper divisors (323704055481816).

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

204444666620016 is a wasteful number, since it uses less digits than its factorization.

204444666620016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259263887928 (or 4259263887922 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 51.

The spelling of 204444666620016 in words is "two hundred four trillion, four hundred forty-four billion, six hundred sixty-six million, six hundred twenty thousand, sixteen".