6866661394148 has 12 divisors (see below), whose sum is σ = 12017842702320. Its totient is φ = 3432992050632.

The previous prime is 6866661394139. The next prime is 6866661394169. The reversal of 6866661394148 is 8414931666686.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84615986 + ... + 84697097.

It is an arithmetic number, because the mean of its divisors is an integer number (1001486891860).

Almost surely, 2^{6866661394148} is an apocalyptic number.

It is an amenable number.

6866661394148 is a deficient number, since it is larger than the sum of its proper divisors (5151181308172).

6866661394148 is a wasteful number, since it uses less digits than its factorization.

6866661394148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169323226 (or 169323224 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 68.

The spelling of 6866661394148 in words is "six trillion, eight hundred sixty-six billion, six hundred sixty-one million, three hundred ninety-four thousand, one hundred forty-eight".