6666670373407 has 6 divisors (see below), whose sum is σ = 7327827765944. Its totient is φ = 6060609430260.

The previous prime is 6666670373393. The next prime is 6666670373411. The reversal of 6666670373407 is 7043730766666.

It is a de Polignac number, because none of the positive numbers 2^k-6666670373407 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 (6666670370407) 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 5 ways as a sum of consecutive naturals, for example, 27548224563 + ... + 27548224804.

Almost surely, 2^{6666670373407} is an apocalyptic number.

6666670373407 is a deficient number, since it is larger than the sum of its proper divisors (661157392537).

6666670373407 is a wasteful number, since it uses less digits than its factorization.

6666670373407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55096449389 (or 55096449378 counting only the distinct ones).

The product of its (nonzero) digits is 96018048, while the sum is 61.

The spelling of 6666670373407 in words is "six trillion, six hundred sixty-six billion, six hundred seventy million, three hundred seventy-three thousand, four hundred seven".