204045633400212 has 18 divisors (see below), whose sum is σ = 515782017761738. Its totient is φ = 68015211133392.

The previous prime is 204045633400159. The next prime is 204045633400223. The reversal of 204045633400212 is 212004336540402.

204045633400212 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 4 + 5 + 6 + 33 + 400 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 198786481895556 + 5259151504656 = 14099166^2 + 2293284^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5667934261117 = 204045633400212 / (2 + 0 + 4 + 0 + 4 + 5 + 6 + 3 + 3 + 4 + 0 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833967130523 + ... + 2833967130594.

Almost surely, 2^{204045633400212} is an apocalyptic number.

It is an amenable number.

204045633400212 is an abundant number, since it is smaller than the sum of its proper divisors (311736384361526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204045633400212 is a wasteful number, since it uses less digits than its factorization.

204045633400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667934261127 (or 5667934261122 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 204045633400212 its reverse (212004336540402), we get a palindrome (416049969940614).

The spelling of 204045633400212 in words is "two hundred four trillion, forty-five billion, six hundred thirty-three million, four hundred thousand, two hundred twelve".