204043022541 has 10 divisors (see below), whose sum is σ = 304805009102. Its totient is φ = 136028681640.

The previous prime is 204043022509. The next prime is 204043022611. The reversal of 204043022541 is 145220340402.

204043022541 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 430 + 225 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 194758929225 + 9284093316 = 441315^2 + 96354^2 .

It is not a de Polignac number, because 204043022541 - 2⁵ = 204043022509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204043022501) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1259524750 + ... + 1259524911.

Almost surely, 2^204043022541 is an apocalyptic number.

It is an amenable number.

204043022541 is a deficient number, since it is larger than the sum of its proper divisors (100761986561).

204043022541 is an equidigital number, since it uses as much as digits as its factorization.

204043022541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519049673 (or 2519049664 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 204043022541 its reverse (145220340402), we get a palindrome (349263362943).

The spelling of 204043022541 in words is "two hundred four billion, forty-three million, twenty-two thousand, five hundred forty-one".