1066774859957 has 2 divisors, whose sum is σ = 1066774859958. Its totient is φ = 1066774859956.

The previous prime is 1066774859951. The next prime is 1066774859963. The reversal of 1066774859957 is 7599584776601.

It is a balanced prime because it is at equal distance from previous prime (1066774859951) and next prime (1066774859963).

It can be written as a sum of positive squares in only one way, i.e., 984046144081 + 82728715876 = 991991^2 + 287626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066774859957 - 2⁶ = 1066774859893 is a prime.

It is a super-2 number, since 2×1066774859957² (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 (1066774859951) 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, 533387429978 + 533387429979.

It is an arithmetic number, because the mean of its divisors is an integer number (533387429979).

Almost surely, 2^{1066774859957} is an apocalyptic number.

It is an amenable number.

1066774859957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066774859957 is an equidigital number, since it uses as much as digits as its factorization.

1066774859957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800150400, while the sum is 74.

The spelling of 1066774859957 in words is "one trillion, sixty-six billion, seven hundred seventy-four million, eight hundred fifty-nine thousand, nine hundred fifty-seven".