6666707407 has 8 divisors (see below), whose sum is σ = 6760592640. Its totient is φ = 6572891520.

The previous prime is 6666707363. The next prime is 6666707417. The reversal of 6666707407 is 7047076666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6666707407 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 (6666707417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194307 + ... + 226027.

It is an arithmetic number, because the mean of its divisors is an integer number (845074080).

Almost surely, 2^6666707407 is an apocalyptic number.

6666707407 is a deficient number, since it is larger than the sum of its proper divisors (93885233).

6666707407 is a wasteful number, since it uses less digits than its factorization.

6666707407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34673.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The square root of 6666707407 is about 81649.9075749630. The cubic root of 6666707407 is about 1882.0758915664.

The spelling of 6666707407 in words is "six billion, six hundred sixty-six million, seven hundred seven thousand, four hundred seven".