6666007717830 has 32 divisors (see below), whose sum is σ = 15998747871744. Its totient is φ = 1777565463776.

The previous prime is 6666007717807. The next prime is 6666007717909. The reversal of 6666007717830 is 387177006666.

It is a happy number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 789504 + ... + 3735683.

It is an arithmetic number, because the mean of its divisors is an integer number (499960870992).

Almost surely, 2^{6666007717830} is an apocalyptic number.

6666007717830 is an abundant number, since it is smaller than the sum of its proper divisors (9332740153914).

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

6666007717830 is a wasteful number, since it uses less digits than its factorization.

6666007717830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574300.

The product of its (nonzero) digits is 10668672, while the sum is 57.

It can be divided in two parts, 6666007 and 717830, that added together give a palindrome (7383837).

The spelling of 6666007717830 in words is "six trillion, six hundred sixty-six billion, seven million, seven hundred seventeen thousand, eight hundred thirty".