6660575 has 12 divisors (see below), whose sum is σ = 8544840. Its totient is φ = 5144160.

The previous prime is 6660557. The next prime is 6660587. The reversal of 6660575 is 5750666.

It is not a de Polignac number, because 6660575 - 2¹⁴ = 6644191 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3869 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (712070).

Almost surely, 2^6660575 is an apocalyptic number.

6660575 is a deficient number, since it is larger than the sum of its proper divisors (1884265).

6660575 is a wasteful number, since it uses less digits than its factorization.

6660575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226 (or 9221 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 6660575 is about 2580.8089816955. The cubic root of 6660575 is about 188.1498635291.

Subtracting from 6660575 its reverse (5750666), we obtain a palindrome (909909).

The spelling of 6660575 in words is "six million, six hundred sixty thousand, five hundred seventy-five".