205177120762142 has 16 divisors (see below), whose sum is σ = 316085121174192. Its totient is φ = 99815439119040.

The previous prime is 205177120762123. The next prime is 205177120762157. The reversal of 205177120762142 is 241267021771502.

205177120762142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10190717 + ... + 22676087.

It is an arithmetic number, because the mean of its divisors is an integer number (19755320073387).

Almost surely, 2^{205177120762142} is an apocalyptic number.

205177120762142 is a deficient number, since it is larger than the sum of its proper divisors (110908000412050).

205177120762142 is a wasteful number, since it uses less digits than its factorization.

205177120762142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707483.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 205177120762142 in words is "two hundred five trillion, one hundred seventy-seven billion, one hundred twenty million, seven hundred sixty-two thousand, one hundred forty-two".