6666706740407 has 8 divisors (see below), whose sum is σ = 7621756528032. Its totient is φ = 5712322730400.

The previous prime is 6666706740401. The next prime is 6666706740427. The reversal of 6666706740407 is 7040476076666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6666706740407 - 2¹⁴ = 6666706724023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666706740401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166422944 + ... + 166462997.

It is an arithmetic number, because the mean of its divisors is an integer number (952719566004).

Almost surely, 2^{6666706740407} is an apocalyptic number.

6666706740407 is a deficient number, since it is larger than the sum of its proper divisors (955049787625).

6666706740407 is a wasteful number, since it uses less digits than its factorization.

6666706740407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332888809.

The product of its (nonzero) digits is 42674688, while the sum is 59.

The spelling of 6666706740407 in words is "six trillion, six hundred sixty-six billion, seven hundred six million, seven hundred forty thousand, four hundred seven".