4540116565 has 4 divisors (see below), whose sum is σ = 5448139884. Its totient is φ = 3632093248.

The previous prime is 4540116461. The next prime is 4540116571. The reversal of 4540116565 is 5656110454.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1065957201 + 3474159364 = 32649^2 + 58942^2 .

It is a cyclic number.

It is not a de Polignac number, because 4540116565 - 2¹⁵ = 4540083797 is a prime.

It is a super-2 number, since 2×4540116565² = 41225316847574798450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 454011652 + ... + 454011661.

It is an arithmetic number, because the mean of its divisors is an integer number (1362034971).

Almost surely, 2^4540116565 is an apocalyptic number.

It is an amenable number.

4540116565 is a deficient number, since it is larger than the sum of its proper divisors (908023319).

4540116565 is an equidigital number, since it uses as much as digits as its factorization.

4540116565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908023318.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 4540116565 is about 67380.3870944654. The cubic root of 4540116565 is about 1655.8551167957.

The spelling of 4540116565 in words is "four billion, five hundred forty million, one hundred sixteen thousand, five hundred sixty-five".