1050666660257 has 2 divisors, whose sum is σ = 1050666660258. Its totient is φ = 1050666660256.

The previous prime is 1050666660203. The next prime is 1050666660317. The reversal of 1050666660257 is 7520666660501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973851211921 + 76815448336 = 986839^2 + 277156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050666660257 - 2¹⁰ = 1050666659233 is a prime.

It is a super-2 number, since 2×1050666660257² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1050666662257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525333330128 + 525333330129.

It is an arithmetic number, because the mean of its divisors is an integer number (525333330129).

Almost surely, 2^{1050666660257} is an apocalyptic number.

It is an amenable number.

1050666660257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050666660257 is an equidigital number, since it uses as much as digits as its factorization.

1050666660257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 1050666660257 in words is "one trillion, fifty billion, six hundred sixty-six million, six hundred sixty thousand, two hundred fifty-seven".