205115355545041 has 2 divisors, whose sum is σ = 205115355545042. Its totient is φ = 205115355545040.

The previous prime is 205115355545027. The next prime is 205115355545083. The reversal of 205115355545041 is 140545553511502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172515195326016 + 32600160219025 = 13134504^2 + 5709655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205115355545041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205115355544982 and 205115355545000.

It is not a weakly prime, because it can be changed into another prime (205115355545341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102557677772520 + 102557677772521.

It is an arithmetic number, because the mean of its divisors is an integer number (102557677772521).

Almost surely, 2^{205115355545041} is an apocalyptic number.

It is an amenable number.

205115355545041 is a deficient number, since it is larger than the sum of its proper divisors (1).

205115355545041 is an equidigital number, since it uses as much as digits as its factorization.

205115355545041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 205115355545041 in words is "two hundred five trillion, one hundred fifteen billion, three hundred fifty-five million, five hundred forty-five thousand, forty-one".