164544330053 has 4 divisors (see below), whose sum is σ = 167648940108. Its totient is φ = 161439720000.

The previous prime is 164544330037. The next prime is 164544330089. The reversal of 164544330053 is 350033445461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138706339489 + 25837990564 = 372433^2 + 160742^2 .

It is a cyclic number.

It is not a de Polignac number, because 164544330053 - 2⁴ = 164544330037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164544329989 and 164544330016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164544330023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552304948 + ... + 1552305053.

It is an arithmetic number, because the mean of its divisors is an integer number (41912235027).

Almost surely, 2^164544330053 is an apocalyptic number.

It is an amenable number.

164544330053 is a deficient number, since it is larger than the sum of its proper divisors (3104610055).

164544330053 is an equidigital number, since it uses as much as digits as its factorization.

164544330053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104610054.

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 164544330053 in words is "one hundred sixty-four billion, five hundred forty-four million, three hundred thirty thousand, fifty-three".