6665883758208 has 384 divisors, whose sum is σ = 19780902872640. Its totient is φ = 2153340518400.

The previous prime is 6665883758189. The next prime is 6665883758227. The reversal of 6665883758208 is 8028573885666.

It is an interprime number because it is at equal distance from previous prime (6665883758189) and next prime (6665883758227).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6109883743 + ... + 6109884833.

Almost surely, 2^{6665883758208} 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 6665883758208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9890451436320).

6665883758208 is an abundant number, since it is smaller than the sum of its proper divisors (13115019114432).

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

6665883758208 is a wasteful number, since it uses less digits than its factorization.

6665883758208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 72.

The spelling of 6665883758208 in words is "six trillion, six hundred sixty-five billion, eight hundred eighty-three million, seven hundred fifty-eight thousand, two hundred eight".