6666337140 has 96 divisors (see below), whose sum is σ = 18858147840. Its totient is φ = 1759449216.

The previous prime is 6666337129. The next prime is 6666337141. The reversal of 6666337140 is 417336666.

It is a junction number, because it is equal to n+sod(n) for n = 6666337092 and 6666337101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666337141) by changing a digit.

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, 3193177 + ... + 3195263.

It is an arithmetic number, because the mean of its divisors is an integer number (196439040).

Almost surely, 2^6666337140 is an apocalyptic number.

6666337140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666337140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9429073920).

6666337140 is an abundant number, since it is smaller than the sum of its proper divisors (12191810700).

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

6666337140 is a wasteful number, since it uses less digits than its factorization.

6666337140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 6666337140 is about 81647.6401373610. The cubic root of 6666337140 is about 1882.0410476045.

The spelling of 6666337140 in words is "six billion, six hundred sixty-six million, three hundred thirty-seven thousand, one hundred forty".