82678166 has 4 divisors (see below), whose sum is σ = 124017252. Its totient is φ = 41339082.

The previous prime is 82678153. The next prime is 82678223. The reversal of 82678166 is 66187628.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20669540 + ... + 20669543.

It is an arithmetic number, because the mean of its divisors is an integer number (31004313).

Almost surely, 2^82678166 is an apocalyptic number.

82678166 is a deficient number, since it is larger than the sum of its proper divisors (41339086).

82678166 is a wasteful number, since it uses less digits than its factorization.

82678166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41339085.

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

The square root of 82678166 is about 9092.7534883554. The cubic root of 82678166 is about 435.6425365944.

The spelling of 82678166 in words is "eighty-two million, six hundred seventy-eight thousand, one hundred sixty-six".