6566661060 has 192 divisors, whose sum is σ = 20843827200. Its totient is φ = 1534629888.

The previous prime is 6566661047. The next prime is 6566661061. The reversal of 6566661060 is 601666656.

It is not an unprimeable number, because it can be changed into a prime (6566661061) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1140549 + ... + 1146291.

It is an arithmetic number, because the mean of its divisors is an integer number (108561600).

Almost surely, 2^6566661060 is an apocalyptic number.

6566661060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6566661060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10421913600).

6566661060 is an abundant number, since it is smaller than the sum of its proper divisors (14277166140).

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

6566661060 is a wasteful number, since it uses less digits than its factorization.

6566661060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850 (or 5848 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 6566661060 is about 81034.9372801633. The cubic root of 6566661060 is about 1872.6137166582.

The spelling of 6566661060 in words is "six billion, five hundred sixty-six million, six hundred sixty-one thousand, sixty".