5856165985 has 4 divisors (see below), whose sum is σ = 7027399188. Its totient is φ = 4684932784.

The previous prime is 5856165983. The next prime is 5856166067. The reversal of 5856165985 is 5895616585.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5895616585 = 5 ⋅1179123317.

It can be written as a sum of positive squares in 2 ways, for example, as 4262000656 + 1594165329 = 65284^2 + 39927^2 .

It is a cyclic number.

It is not a de Polignac number, because 5856165985 - 2¹ = 5856165983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5856165983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585616594 + ... + 585616603.

It is an arithmetic number, because the mean of its divisors is an integer number (1756849797).

Almost surely, 2^5856165985 is an apocalyptic number.

It is an amenable number.

5856165985 is a deficient number, since it is larger than the sum of its proper divisors (1171233203).

5856165985 is a wasteful number, since it uses less digits than its factorization.

5856165985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171233202.

The product of its digits is 12960000, while the sum is 58.

The square root of 5856165985 is about 76525.5903930182. The cubic root of 5856165985 is about 1802.4827863030.

The spelling of 5856165985 in words is "five billion, eight hundred fifty-six million, one hundred sixty-five thousand, nine hundred eighty-five".