204476505143 has 16 divisors (see below), whose sum is σ = 208388643840. Its totient is φ = 200579811264.

The previous prime is 204476505139. The next prime is 204476505157. The reversal of 204476505143 is 341505674402.

It is a cyclic number.

It is not a de Polignac number, because 204476505143 - 2² = 204476505139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204476505143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204476585143) 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, 94971755 + ... + 94973907.

It is an arithmetic number, because the mean of its divisors is an integer number (13024290240).

Almost surely, 2^204476505143 is an apocalyptic number.

204476505143 is a deficient number, since it is larger than the sum of its proper divisors (3912138697).

204476505143 is a wasteful number, since it uses less digits than its factorization.

204476505143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 204476505143 in words is "two hundred four billion, four hundred seventy-six million, five hundred five thousand, one hundred forty-three".