4160257565 has 4 divisors (see below), whose sum is σ = 4992309084. Its totient is φ = 3328206048.

The previous prime is 4160257513. The next prime is 4160257573. The reversal of 4160257565 is 5657520614.

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 2018974489 + 2141283076 = 44933^2 + 46274^2 .

It is a cyclic number.

It is not a de Polignac number, because 4160257565 - 2²⁴ = 4143480349 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 416025752 + ... + 416025761.

It is an arithmetic number, because the mean of its divisors is an integer number (1248077271).

Almost surely, 2^4160257565 is an apocalyptic number.

It is an amenable number.

4160257565 is a deficient number, since it is larger than the sum of its proper divisors (832051519).

4160257565 is an equidigital number, since it uses as much as digits as its factorization.

4160257565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832051518.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 4160257565 is about 64500.0586433842. The cubic root of 4160257565 is about 1608.3234950016.

The spelling of 4160257565 in words is "four billion, one hundred sixty million, two hundred fifty-seven thousand, five hundred sixty-five".