1066000318021 has 2 divisors, whose sum is σ = 1066000318022. Its totient is φ = 1066000318020.

The previous prime is 1066000317947. The next prime is 1066000318069. The reversal of 1066000318021 is 1208130006601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065085920900 + 914397121 = 1032030^2 + 30239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066000318021 - 2¹⁵ = 1066000285253 is a prime.

It is a super-2 number, since 2×1066000318021² (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 (1066000318121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533000159010 + 533000159011.

It is an arithmetic number, because the mean of its divisors is an integer number (533000159011).

Almost surely, 2^{1066000318021} is an apocalyptic number.

It is an amenable number.

1066000318021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066000318021 is an equidigital number, since it uses as much as digits as its factorization.

1066000318021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1066000318021 in words is "one trillion, sixty-six billion, three hundred eighteen thousand, twenty-one".