82170997160 has 32 divisors (see below), whose sum is σ = 211296850560. Its totient is φ = 28172913216.

The previous prime is 82170997109. The next prime is 82170997171. The reversal of 82170997160 is 6179907128.

It is a junction number, because it is equal to n+sod(n) for n = 82170997099 and 82170997108.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 146733644 + ... + 146734203.

It is an arithmetic number, because the mean of its divisors is an integer number (6603026580).

Almost surely, 2^82170997160 is an apocalyptic number.

It is an amenable number.

82170997160 is an abundant number, since it is smaller than the sum of its proper divisors (129125853400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82170997160 is a wasteful number, since it uses less digits than its factorization.

82170997160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293467865 (or 293467861 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 82170997160 in words is "eighty-two billion, one hundred seventy million, nine hundred ninety-seven thousand, one hundred sixty".