6666673400 has 48 divisors (see below), whose sum is σ = 15592908240. Its totient is φ = 2650688000.

The previous prime is 6666673379. The next prime is 6666673421. The reversal of 6666673400 is 43766666.

It is an interprime number because it is at equal distance from previous prime (6666673379) and next prime (6666673421).

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 11 ways as a sum of consecutive naturals, for example, 66401 + ... + 133200.

It is an arithmetic number, because the mean of its divisors is an integer number (324852255).

Almost surely, 2^6666673400 is an apocalyptic number.

It is an amenable number.

6666673400 is an abundant number, since it is smaller than the sum of its proper divisors (8926234840).

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

6666673400 is a wasteful number, since it uses less digits than its factorization.

6666673400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199784 (or 199775 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 6666673400 is about 81649.6993258395. The cubic root of 6666673400 is about 1882.0726913928.

The spelling of 6666673400 in words is "six billion, six hundred sixty-six million, six hundred seventy-three thousand, four hundred".