6678166 has 8 divisors (see below), whose sum is σ = 10927944. Its totient is φ = 3035520.

The previous prime is 6678157. The next prime is 6678173. The reversal of 6678166 is 6618766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6678166² = 89195802247112, which 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151755 + ... + 151798.

It is an arithmetic number, because the mean of its divisors is an integer number (1365993).

Almost surely, 2^6678166 is an apocalyptic number.

6678166 is a deficient number, since it is larger than the sum of its proper divisors (4249778).

6678166 is a wasteful number, since it uses less digits than its factorization.

6678166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303566.

The product of its digits is 72576, while the sum is 40.

The square root of 6678166 is about 2584.2147743560. The cubic root of 6678166 is about 188.3153564867.

The spelling of 6678166 in words is "six million, six hundred seventy-eight thousand, one hundred sixty-six".