1160565565 has 8 divisors (see below), whose sum is σ = 1415509848. Its totient is φ = 913231680.

The previous prime is 1160565563. The next prime is 1160565589. The reversal of 1160565565 is 5655650611.

It can be written as a sum of positive squares in 4 ways, for example, as 87216921 + 1073348644 = 9339^2 + 32762^2 .

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

It is not a de Polignac number, because 1160565565 - 2¹ = 1160565563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160565563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902262 + ... + 1902871.

It is an arithmetic number, because the mean of its divisors is an integer number (176938731).

Almost surely, 2^1160565565 is an apocalyptic number.

It is an amenable number.

1160565565 is a deficient number, since it is larger than the sum of its proper divisors (254944283).

1160565565 is an equidigital number, since it uses as much as digits as its factorization.

1160565565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805199.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 1160565565 is about 34067.0745001680. The cubic root of 1160565565 is about 1050.8883079855. Note that the first 3 decimals are identical.

The spelling of 1160565565 in words is "one billion, one hundred sixty million, five hundred sixty-five thousand, five hundred sixty-five".