204401603163 has 8 divisors (see below), whose sum is σ = 272543720976. Its totient is φ = 136263610400.

The previous prime is 204401603141. The next prime is 204401603173. The reversal of 204401603163 is 361306104402.

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 204401603163 - 2¹⁸ = 204401341019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204401603163.

It is not an unprimeable number, because it can be changed into a prime (204401603173) 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, 913728 + ... + 1115213.

It is an arithmetic number, because the mean of its divisors is an integer number (34067965122).

Almost surely, 2^204401603163 is an apocalyptic number.

204401603163 is a deficient number, since it is larger than the sum of its proper divisors (68142117813).

204401603163 is a wasteful number, since it uses less digits than its factorization.

204401603163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062525.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 204401603163 its reverse (361306104402), we get a palindrome (565707707565).

The spelling of 204401603163 in words is "two hundred four billion, four hundred one million, six hundred three thousand, one hundred sixty-three".