205166243050 has 24 divisors (see below), whose sum is σ = 388077170400. Its totient is φ = 80675538480.

The previous prime is 205166243021. The next prime is 205166243057. The reversal of 205166243050 is 50342661502.

It is a junction number, because it is equal to n+sod(n) for n = 205166242997 and 205166243015.

It is not an unprimeable number, because it can be changed into a prime (205166243057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34770990 + ... + 34776889.

It is an arithmetic number, because the mean of its divisors is an integer number (16169882100).

Almost surely, 2^205166243050 is an apocalyptic number.

205166243050 is a deficient number, since it is larger than the sum of its proper divisors (182910927350).

205166243050 is a wasteful number, since it uses less digits than its factorization.

205166243050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69547950 (or 69547945 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 205166243050 in words is "two hundred five billion, one hundred sixty-six million, two hundred forty-three thousand, fifty".