1056705611611 has 4 divisors (see below), whose sum is σ = 1137990658672. Its totient is φ = 975420564552.

The previous prime is 1056705611609. The next prime is 1056705611617. The reversal of 1056705611611 is 1161165076501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056705611611 - 2¹ = 1056705611609 is a prime.

It is a super-2 number, since 2×1056705611611² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056705611617) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40642523511 + ... + 40642523536.

It is an arithmetic number, because the mean of its divisors is an integer number (284497664668).

Almost surely, 2^{1056705611611} is an apocalyptic number.

1056705611611 is a deficient number, since it is larger than the sum of its proper divisors (81285047061).

1056705611611 is an equidigital number, since it uses as much as digits as its factorization.

1056705611611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81285047060.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 1056705611611 in words is "one trillion, fifty-six billion, seven hundred five million, six hundred eleven thousand, six hundred eleven".