164444445928 has 16 divisors (see below), whose sum is σ = 352380955680. Its totient is φ = 70476191088.

The previous prime is 164444445901. The next prime is 164444445959. The reversal of 164444445928 is 829544444461.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1468253926 + ... + 1468254037.

It is an arithmetic number, because the mean of its divisors is an integer number (22023809730).

Almost surely, 2^164444445928 is an apocalyptic number.

It is an amenable number.

164444445928 is an abundant number, since it is smaller than the sum of its proper divisors (187936509752).

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

164444445928 is a wasteful number, since it uses less digits than its factorization.

164444445928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936507976 (or 2936507972 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 55.

The spelling of 164444445928 in words is "one hundred sixty-four billion, four hundred forty-four million, four hundred forty-five thousand, nine hundred twenty-eight".