205484628559 has 16 divisors (see below), whose sum is σ = 236326540032. Its totient is φ = 175014883008.

The previous prime is 205484628553. The next prime is 205484628577. The reversal of 205484628559 is 955826484502.

It is not a de Polignac number, because 205484628559 - 2¹¹ = 205484626511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205484628553) 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, 7063107 + ... + 7092139.

It is an arithmetic number, because the mean of its divisors is an integer number (14770408752).

Almost surely, 2^205484628559 is an apocalyptic number.

205484628559 is a deficient number, since it is larger than the sum of its proper divisors (30841911473).

205484628559 is a wasteful number, since it uses less digits than its factorization.

205484628559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35406.

The product of its (nonzero) digits is 27648000, while the sum is 58.

The spelling of 205484628559 in words is "two hundred five billion, four hundred eighty-four million, six hundred twenty-eight thousand, five hundred fifty-nine".