6663225671 has 8 divisors (see below), whose sum is σ = 6686964960. Its totient is φ = 6639510528.

The previous prime is 6663225637. The next prime is 6663225683. The reversal of 6663225671 is 1765223666.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6663225671 - 2⁶ = 6663225607 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 (6663224671) 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, 682295 + ... + 691991.

It is an arithmetic number, because the mean of its divisors is an integer number (835870620).

Almost surely, 2^6663225671 is an apocalyptic number.

6663225671 is a deficient number, since it is larger than the sum of its proper divisors (23739289).

6663225671 is a wasteful number, since it uses less digits than its factorization.

6663225671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12073.

The product of its digits is 544320, while the sum is 44.

The square root of 6663225671 is about 81628.5836640573. The cubic root of 6663225671 is about 1881.7481919449.

The spelling of 6663225671 in words is "six billion, six hundred sixty-three million, two hundred twenty-five thousand, six hundred seventy-one".