8158166 has 16 divisors (see below), whose sum is σ = 12718080. Its totient is φ = 3921960.

The previous prime is 8158133. The next prime is 8158187. The reversal of 8158166 is 6618518.

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 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 6281.

It is an arithmetic number, because the mean of its divisors is an integer number (794880).

Almost surely, 2^8158166 is an apocalyptic number.

8158166 is a deficient number, since it is larger than the sum of its proper divisors (4559914).

8158166 is a wasteful number, since it uses less digits than its factorization.

8158166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579.

The product of its digits is 11520, while the sum is 35.

The square root of 8158166 is about 2856.2503391685. The cubic root of 8158166 is about 201.3094578893.

The spelling of 8158166 in words is "eight million, one hundred fifty-eight thousand, one hundred sixty-six".