6671443476671 has 4 divisors (see below), whose sum is σ = 6673866815232. Its totient is φ = 6669020138112.

The previous prime is 6671443476641. The next prime is 6671443476701. The reversal of 6671443476671 is 1766743441766.

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

It is an interprime number because it is at equal distance from previous prime (6671443476641) and next prime (6671443476701).

It is a cyclic number.

It is not a de Polignac number, because 6671443476671 - 2²⁶ = 6671376367807 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 (6671443476631) 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, 1211665151 + ... + 1211670656.

It is an arithmetic number, because the mean of its divisors is an integer number (1668466703808).

Almost surely, 2^{6671443476671} is an apocalyptic number.

6671443476671 is a deficient number, since it is larger than the sum of its proper divisors (2423338561).

6671443476671 is a wasteful number, since it uses less digits than its factorization.

6671443476671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423338560.

The product of its digits is 85349376, while the sum is 62.

The spelling of 6671443476671 in words is "six trillion, six hundred seventy-one billion, four hundred forty-three million, four hundred seventy-six thousand, six hundred seventy-one".