6666889160 has 16 divisors (see below), whose sum is σ = 15000500700. Its totient is φ = 2666755648.

The previous prime is 6666889153. The next prime is 6666889211. The reversal of 6666889160 is 619886666.

It can be written as a sum of positive squares in 2 ways, for example, as 5970034756 + 696854404 = 77266^2 + 26398^2 .

It is a super-2 number, since 2×6666889160² = 88894822143451011200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6666889096 and 6666889105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83336075 + ... + 83336154.

Almost surely, 2^6666889160 is an apocalyptic number.

It is an amenable number.

6666889160 is an abundant number, since it is smaller than the sum of its proper divisors (8333611540).

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

6666889160 is a wasteful number, since it uses less digits than its factorization.

6666889160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166672240 (or 166672236 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The square root of 6666889160 is about 81651.0205692495. The cubic root of 6666889160 is about 1882.0929949534.

The spelling of 6666889160 in words is "six billion, six hundred sixty-six million, eight hundred eighty-nine thousand, one hundred sixty".