205021252316 has 36 divisors (see below), whose sum is σ = 375345723984. Its totient is φ = 97980220800.

The previous prime is 205021252301. The next prime is 205021252361. The reversal of 205021252316 is 613252120502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2844281 + ... + 2915471.

Almost surely, 2^205021252316 is an apocalyptic number.

It is an amenable number.

205021252316 is a deficient number, since it is larger than the sum of its proper divisors (170324471668).

205021252316 is a wasteful number, since it uses less digits than its factorization.

205021252316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72602 (or 72577 counting only the distinct ones).

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

Adding to 205021252316 its reverse (613252120502), we get a palindrome (818273372818).

The spelling of 205021252316 in words is "two hundred five billion, twenty-one million, two hundred fifty-two thousand, three hundred sixteen".