164110578481 has 2 divisors, whose sum is σ = 164110578482. Its totient is φ = 164110578480.

The previous prime is 164110578479. The next prime is 164110578493. The reversal of 164110578481 is 184875011461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126867754225 + 37242824256 = 356185^2 + 192984^2 .

It is a cyclic number.

It is not a de Polignac number, because 164110578481 - 2¹ = 164110578479 is a prime.

It is a super-2 number, since 2×164110578481² (a number of 23 digits) contains 22 as substring.

Together with 164110578479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164110578421) 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 as a sum of consecutive naturals, namely, 82055289240 + 82055289241.

It is an arithmetic number, because the mean of its divisors is an integer number (82055289241).

Almost surely, 2^164110578481 is an apocalyptic number.

It is an amenable number.

164110578481 is a deficient number, since it is larger than the sum of its proper divisors (1).

164110578481 is an equidigital number, since it uses as much as digits as its factorization.

164110578481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 164110578481 in words is "one hundred sixty-four billion, one hundred ten million, five hundred seventy-eight thousand, four hundred eighty-one".