204032508345 has 24 divisors (see below), whose sum is σ = 357157903752. Its totient is φ = 107739936000.

The previous prime is 204032508331. The next prime is 204032508409. The reversal of 204032508345 is 543805230402.

204032508345 is a `hidden beast` number, since 20 + 40 + 3 + 250 + 8 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 139287196944 + 64745311401 = 373212^2 + 254451^2 .

It is not a de Polignac number, because 204032508345 - 2¹⁰ = 204032507321 is a prime.

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, 22441276 + ... + 22450365.

It is an arithmetic number, because the mean of its divisors is an integer number (14881579323).

Almost surely, 2^204032508345 is an apocalyptic number.

It is an amenable number.

204032508345 is a deficient number, since it is larger than the sum of its proper divisors (153125395407).

204032508345 is a wasteful number, since it uses less digits than its factorization.

204032508345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44891753 (or 44891750 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 204032508345 its reverse (543805230402), we get a palindrome (747837738747).

The spelling of 204032508345 in words is "two hundred four billion, thirty-two million, five hundred eight thousand, three hundred forty-five".