6658133231172 has 12 divisors (see below), whose sum is σ = 15535644206096. Its totient is φ = 2219377743720.

The previous prime is 6658133231159. The next prime is 6658133231177. The reversal of 6658133231172 is 2711323318566.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6658133231177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277422217954 + ... + 277422217977.

Almost surely, 2^{6658133231172} is an apocalyptic number.

It is an amenable number.

6658133231172 is an abundant number, since it is smaller than the sum of its proper divisors (8877510974924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6658133231172 is a wasteful number, since it uses less digits than its factorization.

6658133231172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554844435938 (or 554844435936 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 6658133231172 in words is "six trillion, six hundred fifty-eight billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred seventy-two".