205180760641 has 2 divisors, whose sum is σ = 205180760642. Its totient is φ = 205180760640.

The previous prime is 205180760599. The next prime is 205180760669. The reversal of 205180760641 is 146067081502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107912250000 + 97268510641 = 328500^2 + 311879^2 .

It is a cyclic number.

It is not a de Polignac number, because 205180760641 - 2¹⁷ = 205180629569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205180760594 and 205180760603.

It is not a weakly prime, because it can be changed into another prime (205180764641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102590380320 + 102590380321.

It is an arithmetic number, because the mean of its divisors is an integer number (102590380321).

Almost surely, 2^205180760641 is an apocalyptic number.

It is an amenable number.

205180760641 is a deficient number, since it is larger than the sum of its proper divisors (1).

205180760641 is an equidigital number, since it uses as much as digits as its factorization.

205180760641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 205180760641 in words is "two hundred five billion, one hundred eighty million, seven hundred sixty thousand, six hundred forty-one".