260045170661 has 2 divisors, whose sum is σ = 260045170662. Its totient is φ = 260045170660.

The previous prime is 260045170643. The next prime is 260045170667. The reversal of 260045170661 is 166071540062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192220864900 + 67824305761 = 438430^2 + 260431^2 .

It is a cyclic number.

It is not a de Polignac number, because 260045170661 - 2³⁴ = 242865301477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260045170667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130022585330 + 130022585331.

It is an arithmetic number, because the mean of its divisors is an integer number (130022585331).

Almost surely, 2^260045170661 is an apocalyptic number.

It is an amenable number.

260045170661 is a deficient number, since it is larger than the sum of its proper divisors (1).

260045170661 is an equidigital number, since it uses as much as digits as its factorization.

260045170661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 260045170661 in words is "two hundred sixty billion, forty-five million, one hundred seventy thousand, six hundred sixty-one".