205355216 has 40 divisors (see below), whose sum is σ = 435159648. Its totient is φ = 93104000.

The previous prime is 205355209. The next prime is 205355221. The reversal of 205355216 is 612553502.

It is a happy number.

205355216 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79871 + ... + 82401.

Almost surely, 2^205355216 is an apocalyptic number.

It is an amenable number.

205355216 is an abundant number, since it is smaller than the sum of its proper divisors (229804432).

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

205355216 is a wasteful number, since it uses less digits than its factorization.

205355216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011 (or 3005 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 205355216 is about 14330.2203751373. The cubic root of 205355216 is about 589.9772240561.

The spelling of 205355216 in words is "two hundred five million, three hundred fifty-five thousand, two hundred sixteen".