1066056505 has 8 divisors (see below), whose sum is σ = 1281609792. Its totient is φ = 851283888.

The previous prime is 1066056499. The next prime is 1066056521. The reversal of 1066056505 is 5056506601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066056505 - 2²⁷ = 931838777 is a prime.

It is a super-2 number, since 2×1066056505² = 2272952943705630050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 192157 + ... + 197626.

It is an arithmetic number, because the mean of its divisors is an integer number (160201224).

Almost surely, 2^1066056505 is an apocalyptic number.

It is an amenable number.

1066056505 is a deficient number, since it is larger than the sum of its proper divisors (215553287).

1066056505 is an equidigital number, since it uses as much as digits as its factorization.

1066056505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390335.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1066056505 is about 32650.5207462301. The cubic root of 1066056505 is about 1021.5510507650.

The spelling of 1066056505 in words is "one billion, sixty-six million, fifty-six thousand, five hundred five".