205266266436 has 96 divisors (see below), whose sum is σ = 597221452800. Its totient is φ = 53308483200.

The previous prime is 205266266431. The next prime is 205266266453. The reversal of 205266266436 is 634662662502.

205266266436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205266266431) 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 31 ways as a sum of consecutive naturals, for example, 10430446 + ... + 10450106.

It is an arithmetic number, because the mean of its divisors is an integer number (6221056800).

Almost surely, 2^205266266436 is an apocalyptic number.

It is an amenable number.

205266266436 is an abundant number, since it is smaller than the sum of its proper divisors (391955186364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205266266436 is a wasteful number, since it uses less digits than its factorization.

205266266436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30985 (or 30983 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 205266266436 in words is "two hundred five billion, two hundred sixty-six million, two hundred sixty-six thousand, four hundred thirty-six".