6683336872405 has 16 divisors (see below), whose sum is σ = 8078445534960. Its totient is φ = 5307770737152.

The previous prime is 6683336872393. The next prime is 6683336872409. The reversal of 6683336872405 is 5042786333866.

It can be written as a sum of positive squares in 8 ways, for example, as 188948441124 + 6494388431281 = 434682^2 + 2548409^2 .

It is a cyclic number.

It is not a de Polignac number, because 6683336872405 - 2³³ = 6674746937813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6683336872409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019350 + ... + 4741639.

It is an arithmetic number, because the mean of its divisors is an integer number (504902845935).

Almost surely, 2^{6683336872405} is an apocalyptic number.

It is an amenable number.

6683336872405 is a deficient number, since it is larger than the sum of its proper divisors (1395108662555).

6683336872405 is a wasteful number, since it uses less digits than its factorization.

6683336872405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762248.

The product of its (nonzero) digits is 104509440, while the sum is 61.

The spelling of 6683336872405 in words is "six trillion, six hundred eighty-three billion, three hundred thirty-six million, eight hundred seventy-two thousand, four hundred five".