6646340316 has 48 divisors (see below), whose sum is σ = 19334810880. Its totient is φ = 1726321920.

The previous prime is 6646340293. The next prime is 6646340341. The reversal of 6646340316 is 6130436466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3595581 + ... + 3597428.

It is an arithmetic number, because the mean of its divisors is an integer number (402808560).

Almost surely, 2^6646340316 is an apocalyptic number.

6646340316 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6646340316 is an abundant number, since it is smaller than the sum of its proper divisors (12688470564).

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

6646340316 is a wasteful number, since it uses less digits than its factorization.

6646340316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193034 (or 7193032 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 6646340316 is about 81525.0901011462. The cubic root of 6646340316 is about 1880.1573276365.

The spelling of 6646340316 in words is "six billion, six hundred forty-six million, three hundred forty thousand, three hundred sixteen".