6666575666156 has 24 divisors (see below), whose sum is σ = 13333361852160. Its totient is φ = 2857058745552.

The previous prime is 6666575666083. The next prime is 6666575666237. The reversal of 6666575666156 is 6516665756666.

It is a super-2 number, since 2×6666575666156² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6666575666156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43130 + ... + 3651713.

It is an arithmetic number, because the mean of its divisors is an integer number (555556743840).

Almost surely, 2^{6666575666156} is an apocalyptic number.

It is an amenable number.

6666575666156 is an abundant number, since it is smaller than the sum of its proper divisors (6666786186004).

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

6666575666156 is a wasteful number, since it uses less digits than its factorization.

6666575666156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759293 (or 3759291 counting only the distinct ones).

The product of its digits is 1469664000, while the sum is 71.

The spelling of 6666575666156 in words is "six trillion, six hundred sixty-six billion, five hundred seventy-five million, six hundred sixty-six thousand, one hundred fifty-six".