6685339356 has 18 divisors (see below), whose sum is σ = 16899052352. Its totient is φ = 2228446440.

The previous prime is 6685339351. The next prime is 6685339391. The reversal of 6685339356 is 6539335866.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685339351) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 92851900 + ... + 92851971.

Almost surely, 2^6685339356 is an apocalyptic number.

It is an amenable number.

6685339356 is an abundant number, since it is smaller than the sum of its proper divisors (10213712996).

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

6685339356 is a wasteful number, since it uses less digits than its factorization.

6685339356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185703881 (or 185703876 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The square root of 6685339356 is about 81763.9245388821. The cubic root of 6685339356 is about 1883.8275871000.

The spelling of 6685339356 in words is "six billion, six hundred eighty-five million, three hundred thirty-nine thousand, three hundred fifty-six".