6670406707 has 4 divisors (see below), whose sum is σ = 6670760056. Its totient is φ = 6670053360.

The previous prime is 6670406647. The next prime is 6670406711. The reversal of 6670406707 is 7076040766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6670406707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6670406747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146658 + ... + 186679.

It is an arithmetic number, because the mean of its divisors is an integer number (1667690014).

Almost surely, 2^6670406707 is an apocalyptic number.

6670406707 is a deficient number, since it is larger than the sum of its proper divisors (353349).

6670406707 is a wasteful number, since it uses less digits than its factorization.

6670406707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353348.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 6670406707 is about 81672.5578575815. The cubic root of 6670406707 is about 1882.4239432373.

The spelling of 6670406707 in words is "six billion, six hundred seventy million, four hundred six thousand, seven hundred seven".