204545412455 has 8 divisors (see below), whose sum is σ = 245872649232. Its totient is φ = 163357560448.

The previous prime is 204545412367. The next prime is 204545412457. The reversal of 204545412455 is 554214545402.

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 204545412455 - 2²⁴ = 204528635239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204545412457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34842962 + ... + 34848831.

It is an arithmetic number, because the mean of its divisors is an integer number (30734081154).

Almost surely, 2^204545412455 is an apocalyptic number.

204545412455 is a deficient number, since it is larger than the sum of its proper divisors (41327236777).

204545412455 is an equidigital number, since it uses as much as digits as its factorization.

204545412455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69692385.

The product of its (nonzero) digits is 640000, while the sum is 41.

Adding to 204545412455 its reverse (554214545402), we get a palindrome (758759957857).

The spelling of 204545412455 in words is "two hundred four billion, five hundred forty-five million, four hundred twelve thousand, four hundred fifty-five".