8566380865 has 16 divisors (see below), whose sum is σ = 11749691520. Its totient is φ = 5873333760.

The previous prime is 8566380829. The next prime is 8566380871. The reversal of 8566380865 is 5680836658.

It is not a de Polignac number, because 8566380865 - 2¹³ = 8566372673 is a prime.

It is a super-2 number, since 2×8566380865² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 478801 + ... + 496369.

It is an arithmetic number, because the mean of its divisors is an integer number (734355720).

Almost surely, 2^8566380865 is an apocalyptic number.

It is an amenable number.

8566380865 is a deficient number, since it is larger than the sum of its proper divisors (3183310655).

8566380865 is a wasteful number, since it uses less digits than its factorization.

8566380865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31512.

The product of its (nonzero) digits is 8294400, while the sum is 55.

The square root of 8566380865 is about 92554.7452322138. The cubic root of 8566380865 is about 2046.1264044383.

The spelling of 8566380865 in words is "eight billion, five hundred sixty-six million, three hundred eighty thousand, eight hundred sixty-five".