82169155616 has 24 divisors (see below), whose sum is σ = 161859965904. Its totient is φ = 41061862720.

The previous prime is 82169155603. The next prime is 82169155639. The reversal of 82169155616 is 61655196128.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650990 + ... + 766893.

It is an arithmetic number, because the mean of its divisors is an integer number (6744165246).

Almost surely, 2^82169155616 is an apocalyptic number.

It is an amenable number.

82169155616 is a deficient number, since it is larger than the sum of its proper divisors (79690810288).

82169155616 is a wasteful number, since it uses less digits than its factorization.

82169155616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419704 (or 1419696 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The spelling of 82169155616 in words is "eighty-two billion, one hundred sixty-nine million, one hundred fifty-five thousand, six hundred sixteen".