205199968 has 12 divisors (see below), whose sum is σ = 403987500. Its totient is φ = 102599968.

The previous prime is 205199963. The next prime is 205199989. The reversal of 205199968 is 869991502.

205199968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205199963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3206218 + ... + 3206281.

It is an arithmetic number, because the mean of its divisors is an integer number (33665625).

Almost surely, 2^205199968 is an apocalyptic number.

It is an amenable number.

205199968 is a deficient number, since it is larger than the sum of its proper divisors (198787532).

205199968 is an equidigital number, since it uses as much as digits as its factorization.

205199968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6412509 (or 6412501 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 205199968 is about 14324.8025466322. The cubic root of 205199968 is about 589.8285128346.

The spelling of 205199968 in words is "two hundred five million, one hundred ninety-nine thousand, nine hundred sixty-eight".