1066056220559 has 16 divisors (see below), whose sum is σ = 1182789216000. Its totient is φ = 952629342720.

The previous prime is 1066056220543. The next prime is 1066056220577. The reversal of 1066056220559 is 9550226506601.

It is not a de Polignac number, because 1066056220559 - 2⁴ = 1066056220543 is a prime.

It is a super-2 number, since 2×1066056220559² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066056220529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7699262 + ... + 7836500.

It is an arithmetic number, because the mean of its divisors is an integer number (73924326000).

Almost surely, 2^{1066056220559} is an apocalyptic number.

1066056220559 is a deficient number, since it is larger than the sum of its proper divisors (116732995441).

1066056220559 is a wasteful number, since it uses less digits than its factorization.

1066056220559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149278.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 1066056220559 in words is "one trillion, sixty-six billion, fifty-six million, two hundred twenty thousand, five hundred fifty-nine".