164681082112 has 18 divisors (see below), whose sum is σ = 328718879258. Its totient is φ = 82340540928.

The previous prime is 164681082091. The next prime is 164681082121. The reversal of 164681082112 is 211280186461.

It can be written as a sum of positive squares in only one way, i.e., 115992011776 + 48689070336 = 340576^2 + 220656^2 .

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, 321642483 + ... + 321642994.

Almost surely, 2^164681082112 is an apocalyptic number.

It is an amenable number.

164681082112 is a deficient number, since it is larger than the sum of its proper divisors (164037797146).

164681082112 is an frugal number, since it uses more digits than its factorization.

164681082112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643285493 (or 643285479 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 164681082112 in words is "one hundred sixty-four billion, six hundred eighty-one million, eighty-two thousand, one hundred twelve".