1066688233571 has 2 divisors, whose sum is σ = 1066688233572. Its totient is φ = 1066688233570.

The previous prime is 1066688233519. The next prime is 1066688233579. The reversal of 1066688233571 is 1753328866601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066688233571 - 2¹⁴ = 1066688217187 is a prime.

It is a super-2 number, since 2×1066688233571² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066688233579) 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, 533344116785 + 533344116786.

It is an arithmetic number, because the mean of its divisors is an integer number (533344116786).

Almost surely, 2^{1066688233571} is an apocalyptic number.

1066688233571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066688233571 is an equidigital number, since it uses as much as digits as its factorization.

1066688233571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 1066688233571 in words is "one trillion, sixty-six billion, six hundred eighty-eight million, two hundred thirty-three thousand, five hundred seventy-one".