1116565561745 has 16 divisors (see below), whose sum is σ = 1344549426192. Its totient is φ = 890139060480.

The previous prime is 1116565561717. The next prime is 1116565561777. The reversal of 1116565561745 is 5471655656111.

It can be written as a sum of positive squares in 8 ways, for example, as 227339193601 + 889226368144 = 476801^2 + 942988^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1116565561745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36980555 + ... + 37010735.

It is an arithmetic number, because the mean of its divisors is an integer number (84034339137).

Almost surely, 2^{1116565561745} is an apocalyptic number.

It is an amenable number.

1116565561745 is a deficient number, since it is larger than the sum of its proper divisors (227983864447).

1116565561745 is a wasteful number, since it uses less digits than its factorization.

1116565561745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55732.

The product of its digits is 3780000, while the sum is 53.

The spelling of 1116565561745 in words is "one trillion, one hundred sixteen billion, five hundred sixty-five million, five hundred sixty-one thousand, seven hundred forty-five".