204340134042045 has 24 divisors (see below), whose sum is σ = 354205745591256. Its totient is φ = 108976426386048.

The previous prime is 204340134041933. The next prime is 204340134042061. The reversal of 204340134042045 is 540240431043402.

204340134042045 is a `hidden beast` number, since 2 + 0 + 4 + 3 + 40 + 1 + 3 + 404 + 204 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15662740233924 + 188677393808121 = 3957618^2 + 13735989^2 .

It is not a de Polignac number, because 204340134042045 - 2⁸ = 204340134041789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102721294 + ... + 104691663.

It is an arithmetic number, because the mean of its divisors is an integer number (14758572732969).

Almost surely, 2^{204340134042045} is an apocalyptic number.

It is an amenable number.

204340134042045 is a deficient number, since it is larger than the sum of its proper divisors (149865611549211).

204340134042045 is a wasteful number, since it uses less digits than its factorization.

204340134042045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207434861 (or 207434858 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 204340134042045 its reverse (540240431043402), we get a palindrome (744580565085447).

The spelling of 204340134042045 in words is "two hundred four trillion, three hundred forty billion, one hundred thirty-four million, forty-two thousand, forty-five".