7166266 has 4 divisors (see below), whose sum is σ = 10749402. Its totient is φ = 3583132.

The previous prime is 7166261. The next prime is 7166279. The reversal of 7166266 is 6626617.

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., 4347225 + 2819041 = 2085^2 + 1679^2 .

It is not an unprimeable number, because it can be changed into a prime (7166261) by changing a digit.

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 as a sum of consecutive naturals, namely, 1791565 + ... + 1791568.

Almost surely, 2^7166266 is an apocalyptic number.

7166266 is a deficient number, since it is larger than the sum of its proper divisors (3583136).

7166266 is a wasteful number, since it uses less digits than its factorization.

7166266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583135.

The product of its digits is 18144, while the sum is 34.

The square root of 7166266 is about 2676.9882330709. The cubic root of 7166266 is about 192.7958323106.

The spelling of 7166266 in words is "seven million, one hundred sixty-six thousand, two hundred sixty-six".