205355220665344 has 44 divisors (see below), whose sum is σ = 412968042575424. Its totient is φ = 102062774257664.

The previous prime is 205355220665303. The next prime is 205355220665383. The reversal of 205355220665344 is 443566022553502.

It is a junction number, because it is equal to n+sod(n) for n = 205355220665291 and 205355220665300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600254764 + ... + 600596779.

Almost surely, 2^{205355220665344} is an apocalyptic number.

It is an amenable number.

205355220665344 is an abundant number, since it is smaller than the sum of its proper divisors (207612821910080).

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

205355220665344 is a wasteful number, since it uses less digits than its factorization.

205355220665344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200851730 (or 1200851712 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 52.

The spelling of 205355220665344 in words is "two hundred five trillion, three hundred fifty-five billion, two hundred twenty million, six hundred sixty-five thousand, three hundred forty-four".