6666704366741 has 4 divisors (see below), whose sum is σ = 6714666268800. Its totient is φ = 6618742464684.

The previous prime is 6666704366711. The next prime is 6666704366759. The reversal of 6666704366741 is 1476634076666.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6666704366741 is a prime.

It is a super-2 number, since 2×6666704366741² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666704366711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23980950821 + ... + 23980951098.

It is an arithmetic number, because the mean of its divisors is an integer number (1678666567200).

Almost surely, 2^{6666704366741} is an apocalyptic number.

It is an amenable number.

6666704366741 is a deficient number, since it is larger than the sum of its proper divisors (47961902059).

6666704366741 is a wasteful number, since it uses less digits than its factorization.

6666704366741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47961902058.

The product of its (nonzero) digits is 109734912, while the sum is 62.

It can be divided in two parts, 6666 and 704366741, that added together give a palindrome (704373407).

The spelling of 6666704366741 in words is "six trillion, six hundred sixty-six billion, seven hundred four million, three hundred sixty-six thousand, seven hundred forty-one".