204334220045 has 4 divisors (see below), whose sum is σ = 245201064060. Its totient is φ = 163467376032.

The previous prime is 204334220039. The next prime is 204334220053. The reversal of 204334220045 is 540022433402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140556758281 + 63777461764 = 374909^2 + 252542^2 .

It is a cyclic number.

It is not a de Polignac number, because 204334220045 - 2¹⁸ = 204333957901 is a prime.

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, 20433422000 + ... + 20433422009.

It is an arithmetic number, because the mean of its divisors is an integer number (61300266015).

Almost surely, 2^204334220045 is an apocalyptic number.

It is an amenable number.

204334220045 is a deficient number, since it is larger than the sum of its proper divisors (40866844015).

204334220045 is an equidigital number, since it uses as much as digits as its factorization.

204334220045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40866844014.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 204334220045 its reverse (540022433402), we get a palindrome (744356653447).

The spelling of 204334220045 in words is "two hundred four billion, three hundred thirty-four million, two hundred twenty thousand, forty-five".