7166066 has 4 divisors (see below), whose sum is σ = 10749102. Its totient is φ = 3583032.

The previous prime is 7166063. The next prime is 7166099. The reversal of 7166066 is 6606617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6606617 = 41 ⋅161137.

It can be written as a sum of positive squares in only one way, i.e., 4748041 + 2418025 = 2179^2 + 1555^2 .

It is not an unprimeable number, because it can be changed into a prime (7166063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1791515 + ... + 1791518.

Almost surely, 2^7166066 is an apocalyptic number.

7166066 is a deficient number, since it is larger than the sum of its proper divisors (3583036).

7166066 is a wasteful number, since it uses less digits than its factorization.

7166066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583035.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7166066 is about 2676.9508773976. The cubic root of 7166066 is about 192.7940387441.

The spelling of 7166066 in words is "seven million, one hundred sixty-six thousand, sixty-six".