205205231216 has 10 divisors (see below), whose sum is σ = 397585135512. Its totient is φ = 102602615600.

The previous prime is 205205231207. The next prime is 205205231239. The reversal of 205205231216 is 612132502502.

205205231216 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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6412663460 + ... + 6412663491.

Almost surely, 2^205205231216 is an apocalyptic number.

It is an amenable number.

205205231216 is a deficient number, since it is larger than the sum of its proper divisors (192379904296).

205205231216 is a wasteful number, since it uses less digits than its factorization.

205205231216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825326959 (or 12825326953 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 205205231216 its reverse (612132502502), we get a palindrome (817337733718).

The spelling of 205205231216 in words is "two hundred five billion, two hundred five million, two hundred thirty-one thousand, two hundred sixteen".