204223134552145 has 16 divisors (see below), whose sum is σ = 251692844793408. Its totient is φ = 158961842625600.

The previous prime is 204223134552133. The next prime is 204223134552179. The reversal of 204223134552145 is 541255431322402.

It is not a de Polignac number, because 204223134552145 - 2³³ = 204214544617553 is a prime.

It is a Duffinian 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, 25709070 + ... + 32701720.

It is an arithmetic number, because the mean of its divisors is an integer number (15730802799588).

Almost surely, 2^{204223134552145} is an apocalyptic number.

It is an amenable number.

204223134552145 is a deficient number, since it is larger than the sum of its proper divisors (47469710241263).

204223134552145 is a wasteful number, since it uses less digits than its factorization.

204223134552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150560.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 204223134552145 its reverse (541255431322402), we get a palindrome (745478565874547).

The spelling of 204223134552145 in words is "two hundred four trillion, two hundred twenty-three billion, one hundred thirty-four million, five hundred fifty-two thousand, one hundred forty-five".