6666733707407 has 4 divisors (see below), whose sum is σ = 6666747549120. Its totient is φ = 6666719865696.

The previous prime is 6666733707343. The next prime is 6666733707433. The reversal of 6666733707407 is 7047073376666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6666733707407 - 2⁶ = 6666733707343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6666733707407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666733797407) 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 3 ways as a sum of consecutive naturals, for example, 6171338 + ... + 7170695.

It is an arithmetic number, because the mean of its divisors is an integer number (1666686887280).

Almost surely, 2^{6666733707407} is an apocalyptic number.

6666733707407 is a deficient number, since it is larger than the sum of its proper divisors (13841713).

6666733707407 is a wasteful number, since it uses less digits than its factorization.

6666733707407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13841712.

The product of its (nonzero) digits is 112021056, while the sum is 62.

The spelling of 6666733707407 in words is "six trillion, six hundred sixty-six billion, seven hundred thirty-three million, seven hundred seven thousand, four hundred seven".