5866145665 has 8 divisors (see below), whose sum is σ = 7282112040. Its totient is φ = 4531091712.

The previous prime is 5866145627. The next prime is 5866145669. The reversal of 5866145665 is 5665416685.

It can be written as a sum of positive squares in 4 ways, for example, as 24295041 + 5841850624 = 4929^2 + 76432^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5866145665 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5866145669) 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, 20227944 + ... + 20228233.

It is an arithmetic number, because the mean of its divisors is an integer number (910264005).

Almost surely, 2^5866145665 is an apocalyptic number.

It is an amenable number.

5866145665 is a deficient number, since it is larger than the sum of its proper divisors (1415966375).

5866145665 is a wasteful number, since it uses less digits than its factorization.

5866145665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40456211.

The product of its digits is 5184000, while the sum is 52.

The square root of 5866145665 is about 76590.7674919112. The cubic root of 5866145665 is about 1803.5060947857.

The spelling of 5866145665 in words is "five billion, eight hundred sixty-six million, one hundred forty-five thousand, six hundred sixty-five".