1056661707005 has 8 divisors (see below), whose sum is σ = 1268036336952. Its totient is φ = 845301173248.

The previous prime is 1056661706993. The next prime is 1056661707011. The reversal of 1056661707005 is 5007071666501.

It can be written as a sum of positive squares in 4 ways, for example, as 158522626201 + 898139080804 = 398149^2 + 947702^2 .

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 1056661707005 - 2²⁶ = 1056594598141 is a prime.

It is a super-2 number, since 2×1056661707005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3358424 + ... + 3659553.

It is an arithmetic number, because the mean of its divisors is an integer number (158504542119).

Almost surely, 2^{1056661707005} is an apocalyptic number.

It is an amenable number.

1056661707005 is a deficient number, since it is larger than the sum of its proper divisors (211374629947).

1056661707005 is an equidigital number, since it uses as much as digits as its factorization.

1056661707005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048095.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 1056661707005 in words is "one trillion, fifty-six billion, six hundred sixty-one million, seven hundred seven thousand, five".