6646738112 has 28 divisors (see below), whose sum is σ = 15073853520. Its totient is φ = 2848601856.

The previous prime is 6646738069. The next prime is 6646738151. The reversal of 6646738112 is 2118376466.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7417787 + ... + 7418682.

Almost surely, 2^6646738112 is an apocalyptic number.

It is an amenable number.

6646738112 is an abundant number, since it is smaller than the sum of its proper divisors (8427115408).

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

6646738112 is a wasteful number, since it uses less digits than its factorization.

6646738112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14836488 (or 14836478 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 6646738112 is about 81527.5297798235. The cubic root of 6646738112 is about 1880.1948372085.

The spelling of 6646738112 in words is "six billion, six hundred forty-six million, seven hundred thirty-eight thousand, one hundred twelve".