6665425163 has 8 divisors (see below), whose sum is σ = 6898770000. Its totient is φ = 6432313888.

The previous prime is 6665425133. The next prime is 6665425171. The reversal of 6665425163 is 3615245666.

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 6665425163 - 2⁶ = 6665425099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6665425133) 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, 713 + ... + 115461.

It is an arithmetic number, because the mean of its divisors is an integer number (862346250).

Almost surely, 2^6665425163 is an apocalyptic number.

6665425163 is a deficient number, since it is larger than the sum of its proper divisors (233344837).

6665425163 is a wasteful number, since it uses less digits than its factorization.

6665425163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116781.

The product of its digits is 777600, while the sum is 44.

The square root of 6665425163 is about 81642.0551125460. The cubic root of 6665425163 is about 1881.9552205410.

The spelling of 6665425163 in words is "six billion, six hundred sixty-five million, four hundred twenty-five thousand, one hundred sixty-three".