82016646686 has 8 divisors (see below), whose sum is σ = 132488429304. Its totient is φ = 37853836920.

The previous prime is 82016646683. The next prime is 82016646713. The reversal of 82016646686 is 68664661028.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82016646683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577243180 + ... + 1577243231.

It is an arithmetic number, because the mean of its divisors is an integer number (16561053663).

Almost surely, 2^82016646686 is an apocalyptic number.

82016646686 is a deficient number, since it is larger than the sum of its proper divisors (50471782618).

82016646686 is a wasteful number, since it uses less digits than its factorization.

82016646686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154486426.

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 82016646686 in words is "eighty-two billion, sixteen million, six hundred forty-six thousand, six hundred eighty-six".