6685020396 has 96 divisors (see below), whose sum is σ = 17585890560. Its totient is φ = 2223216720.

The previous prime is 6685020373. The next prime is 6685020427. The reversal of 6685020396 is 6930205866.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6884191 + ... + 6885161.

It is an arithmetic number, because the mean of its divisors is an integer number (183186360).

Almost surely, 2^6685020396 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 6685020396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8792945280).

6685020396 is an abundant number, since it is smaller than the sum of its proper divisors (10900870164).

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

6685020396 is an equidigital number, since it uses as much as digits as its factorization.

6685020396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 6685020396 is about 81761.9740221578. The cubic root of 6685020396 is about 1883.7976272544.

The spelling of 6685020396 in words is "six billion, six hundred eighty-five million, twenty thousand, three hundred ninety-six".