205944652263 has 24 divisors (see below), whose sum is σ = 322586999280. Its totient is φ = 116517475200.

The previous prime is 205944652261. The next prime is 205944652279. The reversal of 205944652263 is 362256449502.

It is not a de Polignac number, because 205944652263 - 2¹ = 205944652261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205944652261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6920718 + ... + 6950411.

It is an arithmetic number, because the mean of its divisors is an integer number (13441124970).

Almost surely, 2^205944652263 is an apocalyptic number.

205944652263 is a deficient number, since it is larger than the sum of its proper divisors (116642347017).

205944652263 is a wasteful number, since it uses less digits than its factorization.

205944652263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13871247 (or 13871240 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 205944652263 in words is "two hundred five billion, nine hundred forty-four million, six hundred fifty-two thousand, two hundred sixty-three".