5685000665 has 4 divisors (see below), whose sum is σ = 6822000804. Its totient is φ = 4548000528.

The previous prime is 5685000649. The next prime is 5685000677. The reversal of 5685000665 is 5660005865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5660005865 = 5 ⋅1132001173.

It can be written as a sum of positive squares in 2 ways, for example, as 2700673024 + 2984327641 = 51968^2 + 54629^2 .

It is a cyclic number.

It is not a de Polignac number, because 5685000665 - 2⁴ = 5685000649 is a prime.

It is a super-2 number, since 2×5685000665² = 64638465122100884450, which contains 22 as substring.

It is a Duffinian 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, 568500062 + ... + 568500071.

It is an arithmetic number, because the mean of its divisors is an integer number (1705500201).

Almost surely, 2^5685000665 is an apocalyptic number.

It is an amenable number.

5685000665 is a deficient number, since it is larger than the sum of its proper divisors (1137000139).

5685000665 is a wasteful number, since it uses less digits than its factorization.

5685000665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137000138.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 5685000665 is about 75398.9433944535. The cubic root of 5685000665 is about 1784.7477369240.

The spelling of 5685000665 in words is "five billion, six hundred eighty-five million, six hundred sixty-five", and thus it is an aban number.