1066056005 has 20 divisors (see below), whose sum is σ = 1492406412. Its totient is φ = 731001600.

The previous prime is 1066055999. The next prime is 1066056041. The reversal of 1066056005 is 5006506601.

It can be written as a sum of positive squares in 2 ways, for example, as 137147521 + 928908484 = 11711^2 + 30478^2 .

It is not a de Polignac number, because 1066056005 - 2²⁰ = 1065007429 is a prime.

It is a super-2 number, since 2×1066056005² = 2272950811593120050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32396 + ... + 56405.

Almost surely, 2^1066056005 is an apocalyptic number.

It is an amenable number.

1066056005 is a deficient number, since it is larger than the sum of its proper divisors (426350407).

1066056005 is an frugal number, since it uses more digits than its factorization.

1066056005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88834 (or 88813 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1066056005 is about 32650.5130893834. The cubic root of 1066056005 is about 1021.5508910562.

The spelling of 1066056005 in words is "one billion, sixty-six million, fifty-six thousand, five".