205975818440052 has 12 divisors (see below), whose sum is σ = 480610243026816. Its totient is φ = 68658606146680.

The previous prime is 205975818440047. The next prime is 205975818440069. The reversal of 205975818440052 is 250044818579502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 8582325768324 + ... + 8582325768347.

It is an arithmetic number, because the mean of its divisors is an integer number (40050853585568).

Almost surely, 2^{205975818440052} is an apocalyptic number.

It is an amenable number.

205975818440052 is an abundant number, since it is smaller than the sum of its proper divisors (274634424586764).

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

205975818440052 is a wasteful number, since it uses less digits than its factorization.

205975818440052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164651536678 (or 17164651536676 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 60.

The spelling of 205975818440052 in words is "two hundred five trillion, nine hundred seventy-five billion, eight hundred eighteen million, four hundred forty thousand, fifty-two".