204444220005 has 24 divisors (see below), whose sum is σ = 357506007768. Its totient is φ = 108071986176.

The previous prime is 204444220003. The next prime is 204444220027. The reversal of 204444220005 is 500022444402.

It can be written as a sum of positive squares in 4 ways, for example, as 20305395009 + 184138824996 = 142497^2 + 429114^2 .

It is not a de Polignac number, because 204444220005 - 2¹ = 204444220003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204444220003) 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, 20097592 + ... + 20107761.

It is an arithmetic number, because the mean of its divisors is an integer number (14896083657).

Almost surely, 2^204444220005 is an apocalyptic number.

It is an amenable number.

204444220005 is a deficient number, since it is larger than the sum of its proper divisors (153061787763).

204444220005 is a wasteful number, since it uses less digits than its factorization.

204444220005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40205477 (or 40205474 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 204444220005 its reverse (500022444402), we get a palindrome (704466664407).

The spelling of 204444220005 in words is "two hundred four billion, four hundred forty-four million, two hundred twenty thousand, five".