205433505541 has 4 divisors (see below), whose sum is σ = 224109278784. Its totient is φ = 186757732300.

The previous prime is 205433505533. The next prime is 205433505547. The reversal of 205433505541 is 145505334502.

205433505541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205433505541 - 2³ = 205433505533 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 205433505541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205433505547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9337886605 + ... + 9337886626.

It is an arithmetic number, because the mean of its divisors is an integer number (56027319696).

Almost surely, 2^205433505541 is an apocalyptic number.

It is an amenable number.

205433505541 is a deficient number, since it is larger than the sum of its proper divisors (18675773243).

205433505541 is a wasteful number, since it uses less digits than its factorization.

205433505541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18675773242.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 205433505541 in words is "two hundred five billion, four hundred thirty-three million, five hundred five thousand, five hundred forty-one".