6575666 has 4 divisors (see below), whose sum is σ = 9863502. Its totient is φ = 3287832.

The previous prime is 6575641. The next prime is 6575669. The reversal of 6575666 is 6665756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3530641 + 3045025 = 1879^2 + 1745^2 .

It is not an unprimeable number, because it can be changed into a prime (6575669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643915 + ... + 1643918.

Almost surely, 2^6575666 is an apocalyptic number.

6575666 is a deficient number, since it is larger than the sum of its proper divisors (3287836).

6575666 is a wasteful number, since it uses less digits than its factorization.

6575666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287835.

The product of its digits is 226800, while the sum is 41.

The square root of 6575666 is about 2564.3061439696. The cubic root of 6575666 is about 187.3469304799.

The spelling of 6575666 in words is "six million, five hundred seventy-five thousand, six hundred sixty-six".