6666681474134 has 32 divisors (see below), whose sum is σ = 11477223368352. Its totient is φ = 2876497056000.

The previous prime is 6666681474121. The next prime is 6666681474157. The reversal of 6666681474134 is 4314741866666.

It is a super-2 number, since 2×6666681474134² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 99844997 + ... + 99911744.

It is an arithmetic number, because the mean of its divisors is an integer number (358663230261).

Almost surely, 2^{6666681474134} is an apocalyptic number.

6666681474134 is a deficient number, since it is larger than the sum of its proper divisors (4810541894218).

6666681474134 is a wasteful number, since it uses less digits than its factorization.

6666681474134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199756832.

The product of its digits is 83607552, while the sum is 62.

The spelling of 6666681474134 in words is "six trillion, six hundred sixty-six billion, six hundred eighty-one million, four hundred seventy-four thousand, one hundred thirty-four".