204105245553231 has 16 divisors (see below), whose sum is σ = 303784551523200. Its totient is φ = 120823401172320.

The previous prime is 204105245553179. The next prime is 204105245553257. The reversal of 204105245553231 is 132355542501402.

It is not a de Polignac number, because 204105245553231 - 2⁷ = 204105245553103 is a prime.

It is a super-2 number, since 2×204105245553231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204105245753231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71918689756 + ... + 71918692593.

It is an arithmetic number, because the mean of its divisors is an integer number (18986534470200).

Almost surely, 2^{204105245553231} is an apocalyptic number.

204105245553231 is a deficient number, since it is larger than the sum of its proper divisors (99679305969969).

204105245553231 is a wasteful number, since it uses less digits than its factorization.

204105245553231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143837382406.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 204105245553231 in words is "two hundred four trillion, one hundred five billion, two hundred forty-five million, five hundred fifty-three thousand, two hundred thirty-one".