6667107647 has 2 divisors, whose sum is σ = 6667107648. Its totient is φ = 6667107646.

The previous prime is 6667107637. The next prime is 6667107673. The reversal of 6667107647 is 7467017666.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6667107647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6667107595 and 6667107604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667107637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333553823 + 3333553824.

It is an arithmetic number, because the mean of its divisors is an integer number (3333553824).

Almost surely, 2^6667107647 is an apocalyptic number.

6667107647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667107647 is an equidigital number, since it uses as much as digits as its factorization.

6667107647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The square root of 6667107647 is about 81652.3584901257. The cubic root of 6667107647 is about 1882.1135546853.

The spelling of 6667107647 in words is "six billion, six hundred sixty-seven million, one hundred seven thousand, six hundred forty-seven".