133243335504 has 160 divisors (see below), whose sum is σ = 397862928000. Its totient is φ = 42642625536.

The previous prime is 133243335499. The next prime is 133243335529. The reversal of 133243335504 is 405533342331.

133243335504 is a `hidden beast` number, since 1 + 3 + 32 + 43 + 33 + 550 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2212804 + ... + 2272220.

It is an arithmetic number, because the mean of its divisors is an integer number (2486643300).

Almost surely, 2^133243335504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133243335504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198931464000).

133243335504 is an abundant number, since it is smaller than the sum of its proper divisors (264619592496).

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

133243335504 is a wasteful number, since it uses less digits than its factorization.

133243335504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59642 (or 59630 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

Adding to 133243335504 its reverse (405533342331), we get a palindrome (538776677835).

The spelling of 133243335504 in words is "one hundred thirty-three billion, two hundred forty-three million, three hundred thirty-five thousand, five hundred four".