205452629126530 has 32 divisors (see below), whose sum is σ = 369880462350000. Its totient is φ = 82166446248192.

The previous prime is 205452629126491. The next prime is 205452629126531. The reversal of 205452629126530 is 35621926254502.

It can be written as a sum of positive squares in 8 ways, for example, as 55900250362609 + 149552378763921 = 7476647^2 + 12229161^2 .

It is not an unprimeable number, because it can be changed into a prime (205452629126531) 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, 1595696596 + ... + 1595825344.

Almost surely, 2^{205452629126530} is an apocalyptic number.

205452629126530 is a deficient number, since it is larger than the sum of its proper divisors (164427833223470).

205452629126530 is a wasteful number, since it uses less digits than its factorization.

205452629126530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155878.

The product of its (nonzero) digits is 7776000, while the sum is 52.

It can be divided in two parts, 2054526 and 29126530, that added together give a square (31181056 = 5584²).

The spelling of 205452629126530 in words is "two hundred five trillion, four hundred fifty-two billion, six hundred twenty-nine million, one hundred twenty-six thousand, five hundred thirty".