8608566609 has 12 divisors (see below), whose sum is σ = 12436444800. Its totient is φ = 5738191224.

The previous prime is 8608566587. The next prime is 8608566611. The reversal of 8608566609 is 9066658068.

It is not a de Polignac number, because 8608566609 - 2⁷ = 8608566481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8608566679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3849 + ... + 131270.

It is an arithmetic number, because the mean of its divisors is an integer number (1036370400).

Almost surely, 2^8608566609 is an apocalyptic number.

It is an amenable number.

8608566609 is a deficient number, since it is larger than the sum of its proper divisors (3827878191).

8608566609 is a wasteful number, since it uses less digits than its factorization.

8608566609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142204 (or 142201 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 8608566609 is about 92782.3615187714. The cubic root of 8608566609 is about 2049.4796703606.

It can be divided in two parts, 8608566 and 609, that added together give a triangular number (8609175 = T₄₁₄₉).

The spelling of 8608566609 in words is "eight billion, six hundred eight million, five hundred sixty-six thousand, six hundred nine".