66168171148 has 12 divisors (see below), whose sum is σ = 117522573112. Its totient is φ = 32590293120.

The previous prime is 66168171143. The next prime is 66168171149. The reversal of 66168171148 is 84117186166.

It is not an unprimeable number, because it can be changed into a prime (66168171143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123447813 + ... + 123448348.

Almost surely, 2^66168171148 is an apocalyptic number.

It is an amenable number.

66168171148 is a deficient number, since it is larger than the sum of its proper divisors (51354401964).

66168171148 is a wasteful number, since it uses less digits than its factorization.

66168171148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246896232 (or 246896230 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The spelling of 66168171148 in words is "sixty-six billion, one hundred sixty-eight million, one hundred seventy-one thousand, one hundred forty-eight".