164442184158 has 24 divisors (see below), whose sum is σ = 382579776072. Its totient is φ = 46983481104.

The previous prime is 164442184141. The next prime is 164442184183. The reversal of 164442184158 is 851481244461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279663285 + ... + 279663872.

It is an arithmetic number, because the mean of its divisors is an integer number (15940824003).

Almost surely, 2^164442184158 is an apocalyptic number.

164442184158 is an abundant number, since it is smaller than the sum of its proper divisors (218137591914).

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

164442184158 is a wasteful number, since it uses less digits than its factorization.

164442184158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559327176 (or 559327169 counting only the distinct ones).

The product of its digits is 983040, while the sum is 48.

The spelling of 164442184158 in words is "one hundred sixty-four billion, four hundred forty-two million, one hundred eighty-four thousand, one hundred fifty-eight".