133423443164 has 72 divisors (see below), whose sum is σ = 268041215904. Its totient is φ = 57959193600.

The previous prime is 133423443163. The next prime is 133423443193. The reversal of 133423443164 is 461344324331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133423443163) 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 23 ways as a sum of consecutive naturals, for example, 14433584 + ... + 14442824.

Almost surely, 2^133423443164 is an apocalyptic number.

It is an amenable number.

133423443164 is an abundant number, since it is smaller than the sum of its proper divisors (134617772740).

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

133423443164 is a wasteful number, since it uses less digits than its factorization.

133423443164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10587 (or 10574 counting only the distinct ones).

The product of its digits is 248832, while the sum is 38.

Adding to 133423443164 its reverse (461344324331), we get a palindrome (594767767495).

The spelling of 133423443164 in words is "one hundred thirty-three billion, four hundred twenty-three million, four hundred forty-three thousand, one hundred sixty-four".