1066056220577 has 2 divisors, whose sum is σ = 1066056220578. Its totient is φ = 1066056220576.

The previous prime is 1066056220543. The next prime is 1066056220601. The reversal of 1066056220577 is 7750226506601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048004685841 + 18051534736 = 1023721^2 + 134356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066056220577 - 2⁸ = 1066056220321 is a prime.

It is a super-2 number, since 2×1066056220577² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066056220507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533028110288 + 533028110289.

It is an arithmetic number, because the mean of its divisors is an integer number (533028110289).

Almost surely, 2^{1066056220577} is an apocalyptic number.

It is an amenable number.

1066056220577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066056220577 is an equidigital number, since it uses as much as digits as its factorization.

1066056220577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 1066056220577 in words is "one trillion, sixty-six billion, fifty-six million, two hundred twenty thousand, five hundred seventy-seven".