82165896686 has 4 divisors (see below), whose sum is σ = 123248845032. Its totient is φ = 41082948342.

The previous prime is 82165896667. The next prime is 82165896713. The reversal of 82165896686 is 68669856128.

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

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, 20541474170 + ... + 20541474173.

It is an arithmetic number, because the mean of its divisors is an integer number (30812211258).

Almost surely, 2^82165896686 is an apocalyptic number.

82165896686 is a deficient number, since it is larger than the sum of its proper divisors (41082948346).

82165896686 is a wasteful number, since it uses less digits than its factorization.

82165896686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41082948345.

The product of its digits is 59719680, while the sum is 65.

The spelling of 82165896686 in words is "eighty-two billion, one hundred sixty-five million, eight hundred ninety-six thousand, six hundred eighty-six".