6566145 has 8 divisors (see below), whose sum is σ = 10505856. Its totient is φ = 3501936.

The previous prime is 6566089. The next prime is 6566171. The reversal of 6566145 is 5416656.

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

It is not a de Polignac number, because 6566145 - 2⁶ = 6566081 is a prime.

It is a super-2 number, since 2×6566145² = 86228520322050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218857 + ... + 218886.

It is an arithmetic number, because the mean of its divisors is an integer number (1313232).

Almost surely, 2^6566145 is an apocalyptic number.

It is an amenable number.

6566145 is a deficient number, since it is larger than the sum of its proper divisors (3939711).

6566145 is a wasteful number, since it uses less digits than its factorization.

6566145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437751.

The product of its digits is 21600, while the sum is 33.

The square root of 6566145 is about 2562.4490238832. The cubic root of 6566145 is about 187.2564660456.

The spelling of 6566145 in words is "six million, five hundred sixty-six thousand, one hundred forty-five".