204425411545 has 8 divisors (see below), whose sum is σ = 246872982024. Its totient is φ = 162498670464.

The previous prime is 204425411537. The next prime is 204425411557. The reversal of 204425411545 is 545114524402.

It can be written as a sum of positive squares in 4 ways, for example, as 1219196889 + 203206214656 = 34917^2 + 450784^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204425411545 - 2³ = 204425411537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130206484 + ... + 130208053.

It is an arithmetic number, because the mean of its divisors is an integer number (30859122753).

Almost surely, 2^204425411545 is an apocalyptic number.

It is an amenable number.

204425411545 is a deficient number, since it is larger than the sum of its proper divisors (42447570479).

204425411545 is a wasteful number, since it uses less digits than its factorization.

204425411545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260414699.

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 204425411545 its reverse (545114524402), we get a palindrome (749539935947).

The spelling of 204425411545 in words is "two hundred four billion, four hundred twenty-five million, four hundred eleven thousand, five hundred forty-five".