6664185 has 24 divisors (see below), whose sum is σ = 12602304. Its totient is φ = 3230880.

The previous prime is 6664169. The next prime is 6664199. The reversal of 6664185 is 5814666.

It is not a de Polignac number, because 6664185 - 2⁴ = 6664169 is a prime.

It is a super-2 number, since 2×6664185² = 88822723428450, which contains 22 as substring.

6664185 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6237 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (525096).

Almost surely, 2^6664185 is an apocalyptic number.

It is an amenable number.

6664185 is a deficient number, since it is larger than the sum of its proper divisors (5938119).

6664185 is a wasteful number, since it uses less digits than its factorization.

6664185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485 (or 13482 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 6664185 is about 2581.5082800564. The cubic root of 6664185 is about 188.1838495004.

It can be divided in two parts, 666 and 4185, that added together give a triangular number (4851 = T₉₈).

The spelling of 6664185 in words is "six million, six hundred sixty-four thousand, one hundred eighty-five".