6666995168428 has 12 divisors (see below), whose sum is σ = 13333990336912. Its totient is φ = 2857283643600.

The previous prime is 6666995168417. The next prime is 6666995168429. The reversal of 6666995168428 is 8248615996666.

6666995168428 is an admirable number.

It is a super-3 number, since 3×6666995168428³ (a number of 39 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6666995168429) 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, 119053485123 + ... + 119053485178.

Almost surely, 2^{6666995168428} is an apocalyptic number.

It is an amenable number.

6666995168428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6666995168428 is a wasteful number, since it uses less digits than its factorization.

6666995168428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238106970312 (or 238106970310 counting only the distinct ones).

The product of its digits is 1612431360, while the sum is 76.

The spelling of 6666995168428 in words is "six trillion, six hundred sixty-six billion, nine hundred ninety-five million, one hundred sixty-eight thousand, four hundred twenty-eight".