6609861336 has 64 divisors (see below), whose sum is σ = 17902483200. Its totient is φ = 2021609088.

The previous prime is 6609861317. The next prime is 6609861361. The reversal of 6609861336 is 6331689066.

It is a super-2 number, since 2×6609861336² = 87380533762295409792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11326 + ... + 115533.

It is an arithmetic number, because the mean of its divisors is an integer number (279726300).

Almost surely, 2^6609861336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6609861336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8951241600).

6609861336 is an abundant number, since it is smaller than the sum of its proper divisors (11292621864).

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

6609861336 is a wasteful number, since it uses less digits than its factorization.

6609861336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127048 (or 127044 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 6609861336 is about 81301.0537201087. The cubic root of 6609861336 is about 1876.7112163100.

The spelling of 6609861336 in words is "six billion, six hundred nine million, eight hundred sixty-one thousand, three hundred thirty-six".