1066128070789 has 2 divisors, whose sum is σ = 1066128070790. Its totient is φ = 1066128070788.

The previous prime is 1066128070741. The next prime is 1066128070811. The reversal of 1066128070789 is 9870708216601.

1066128070789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930902717889 + 135225352900 = 964833^2 + 367730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066128070789 - 2²¹ = 1066125973637 is a prime.

It is a super-2 number, since 2×1066128070789² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066128073789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533064035394 + 533064035395.

It is an arithmetic number, because the mean of its divisors is an integer number (533064035395).

Almost surely, 2^{1066128070789} is an apocalyptic number.

It is an amenable number.

1066128070789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066128070789 is an equidigital number, since it uses as much as digits as its factorization.

1066128070789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 1066128070789 in words is "one trillion, sixty-six billion, one hundred twenty-eight million, seventy thousand, seven hundred eighty-nine".