6566606616 has 32 divisors (see below), whose sum is σ = 16419594240. Its totient is φ = 2188458528.

The previous prime is 6566606593. The next prime is 6566606639. The reversal of 6566606616 is 6166066656.

It is an interprime number because it is at equal distance from previous prime (6566606593) and next prime (6566606639).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 122505 + ... + 167751.

It is an arithmetic number, because the mean of its divisors is an integer number (513112320).

Almost surely, 2^6566606616 is an apocalyptic number.

It is an amenable number.

6566606616 is an abundant number, since it is smaller than the sum of its proper divisors (9852987624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6566606616 is a wasteful number, since it uses less digits than its factorization.

6566606616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51303 (or 51299 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The square root of 6566606616 is about 81034.6013502874. The cubic root of 6566606616 is about 1872.6085413816.

The spelling of 6566606616 in words is "six billion, five hundred sixty-six million, six hundred six thousand, six hundred sixteen".