82166768 has 10 divisors (see below), whose sum is σ = 159198144. Its totient is φ = 41083376.

The previous prime is 82166767. The next prime is 82166779. The reversal of 82166768 is 86766128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82166761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567696 + ... + 2567727.

Almost surely, 2^82166768 is an apocalyptic number.

It is an amenable number.

82166768 is a deficient number, since it is larger than the sum of its proper divisors (77031376).

82166768 is a wasteful number, since it uses less digits than its factorization.

82166768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135431 (or 5135425 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 82166768 is about 9064.5886834428. The cubic root of 82166768 is about 434.7424696649.

The spelling of 82166768 in words is "eighty-two million, one hundred sixty-six thousand, seven hundred sixty-eight".