6685606368 has 288 divisors, whose sum is σ = 22802217984. Its totient is φ = 1818049536.

The previous prime is 6685606349. The next prime is 6685606373. The reversal of 6685606368 is 8636065866.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3504871 + ... + 3506777.

It is an arithmetic number, because the mean of its divisors is an integer number (79174368).

Almost surely, 2^6685606368 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 6685606368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11401108992).

6685606368 is an abundant number, since it is smaller than the sum of its proper divisors (16116611616).

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

6685606368 is a wasteful number, since it uses less digits than its factorization.

6685606368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The square root of 6685606368 is about 81765.5573453762. The cubic root of 6685606368 is about 1883.8526667481.

The spelling of 6685606368 in words is "six billion, six hundred eighty-five million, six hundred six thousand, three hundred sixty-eight".