204155132105543 has 8 divisors (see below), whose sum is σ = 204230209109760. Its totient is φ = 204080056230400.

The previous prime is 204155132105531. The next prime is 204155132105567. The reversal of 204155132105543 is 345501231551402.

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 204155132105543 - 2⁴ = 204155132105527 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 204155132105543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204155132107543) 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 7 ways as a sum of consecutive naturals, for example, 576192023 + ... + 576546231.

It is an arithmetic number, because the mean of its divisors is an integer number (25528776138720).

Almost surely, 2^{204155132105543} is an apocalyptic number.

204155132105543 is a deficient number, since it is larger than the sum of its proper divisors (75077004217).

204155132105543 is a wasteful number, since it uses less digits than its factorization.

204155132105543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564537.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 204155132105543 its reverse (345501231551402), we get a palindrome (549656363656945).

The spelling of 204155132105543 in words is "two hundred four trillion, one hundred fifty-five billion, one hundred thirty-two million, one hundred five thousand, five hundred forty-three".