204541234003405 has 16 divisors (see below), whose sum is σ = 266013842021424. Its totient is φ = 150083758955520.

The previous prime is 204541234003373. The next prime is 204541234003427. The reversal of 204541234003405 is 504300432145402.

It can be written as a sum of positive squares in 8 ways, for example, as 74400526829476 + 130140707173929 = 8625574^2 + 11407923^2 .

It is not a de Polignac number, because 204541234003405 - 2⁵ = 204541234003373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10021608316 + ... + 10021628725.

It is an arithmetic number, because the mean of its divisors is an integer number (16625865126339).

Almost surely, 2^{204541234003405} is an apocalyptic number.

It is an amenable number.

204541234003405 is a deficient number, since it is larger than the sum of its proper divisors (61472608018019).

204541234003405 is a wasteful number, since it uses less digits than its factorization.

204541234003405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20043237216.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 204541234003405 its reverse (504300432145402), we get a palindrome (708841666148807).

The spelling of 204541234003405 in words is "two hundred four trillion, five hundred forty-one billion, two hundred thirty-four million, three thousand, four hundred five".