205554066 has 16 divisors (see below), whose sum is σ = 412257600. Its totient is φ = 68326448.

The previous prime is 205554047. The next prime is 205554067. The reversal of 205554066 is 660455502.

It is a happy number.

205554066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205554067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45561 + ... + 49868.

It is an arithmetic number, because the mean of its divisors is an integer number (25766100).

Almost surely, 2^205554066 is an apocalyptic number.

205554066 is an abundant number, since it is smaller than the sum of its proper divisors (206703534).

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

205554066 is a wasteful number, since it uses less digits than its factorization.

205554066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95793.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 205554066 is about 14337.1568311154. The cubic root of 205554066 is about 590.1675919575.

The spelling of 205554066 in words is "two hundred five million, five hundred fifty-four thousand, sixty-six".