82566158 has 4 divisors (see below), whose sum is σ = 123849240. Its totient is φ = 41283078.

The previous prime is 82566151. The next prime is 82566167. The reversal of 82566158 is 85166528.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82566151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20641538 + ... + 20641541.

It is an arithmetic number, because the mean of its divisors is an integer number (30962310).

Almost surely, 2^82566158 is an apocalyptic number.

82566158 is a deficient number, since it is larger than the sum of its proper divisors (41283082).

82566158 is a wasteful number, since it uses less digits than its factorization.

82566158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41283081.

The product of its digits is 115200, while the sum is 41.

The square root of 82566158 is about 9086.5922105044. The cubic root of 82566158 is about 435.4457192105.

The spelling of 82566158 in words is "eighty-two million, five hundred sixty-six thousand, one hundred fifty-eight".