164341862881 has 27 divisors (see below), whose sum is σ = 198091877529. Its totient is φ = 135938953248.

The previous prime is 164341862869. The next prime is 164341862887. The reversal of 164341862881 is 188268143461.

The square root of 164341862881 is 405391.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 52796550625 + 111545312256 = 229775^2 + 333984^2 .

It is not a de Polignac number, because 164341862881 - 2⁵ = 164341862849 is a prime.

It is a super-2 number, since 2×164341862881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164341862887) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 82293375 + ... + 82295371.

Almost surely, 2^164341862881 is an apocalyptic number.

164341862881 is the 405391-st square number.

164341862881 is the 202696-th centered octagonal number.

It is an amenable number.

164341862881 is a deficient number, since it is larger than the sum of its proper divisors (33750014648).

164341862881 is an frugal number, since it uses more digits than its factorization.

164341862881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066 (or 2033 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 52.

The spelling of 164341862881 in words is "one hundred sixty-four billion, three hundred forty-one million, eight hundred sixty-two thousand, eight hundred eighty-one".