204423415065163 has 16 divisors (see below), whose sum is σ = 247706986230720. Its totient is φ = 164688023402496.

The previous prime is 204423415065101. The next prime is 204423415065193. The reversal of 204423415065163 is 361560514324402.

It is a cyclic number.

It is not a de Polignac number, because 204423415065163 - 2¹⁷ = 204423414934091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204423415065193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171702558 + ... + 1171877011.

It is an arithmetic number, because the mean of its divisors is an integer number (15481686639420).

Almost surely, 2^{204423415065163} is an apocalyptic number.

204423415065163 is a deficient number, since it is larger than the sum of its proper divisors (43283571165557).

204423415065163 is a wasteful number, since it uses less digits than its factorization.

204423415065163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343580326.

The product of its (nonzero) digits is 2073600, while the sum is 46.

Adding to 204423415065163 its reverse (361560514324402), we get a palindrome (565983929389565).

The spelling of 204423415065163 in words is "two hundred four trillion, four hundred twenty-three billion, four hundred fifteen million, sixty-five thousand, one hundred sixty-three".