164538579441 has 16 divisors (see below), whose sum is σ = 226727298560. Its totient is φ = 106029423360.

The previous prime is 164538579437. The next prime is 164538579449. The reversal of 164538579441 is 144975835461.

It is not a de Polignac number, because 164538579441 - 2² = 164538579437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164538579449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957736 + ... + 1116393.

It is an arithmetic number, because the mean of its divisors is an integer number (14170456160).

Almost surely, 2^164538579441 is an apocalyptic number.

It is an amenable number.

164538579441 is a deficient number, since it is larger than the sum of its proper divisors (62188719119).

164538579441 is a wasteful number, since it uses less digits than its factorization.

164538579441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075016.

The product of its digits is 14515200, while the sum is 57.

The spelling of 164538579441 in words is "one hundred sixty-four billion, five hundred thirty-eight million, five hundred seventy-nine thousand, four hundred forty-one".