133235401344 has 32 divisors (see below), whose sum is σ = 353906535840. Its totient is φ = 44411800320.

The previous prime is 133235401339. The next prime is 133235401357. The reversal of 133235401344 is 443104532331.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173483212 + ... + 173483979.

It is an arithmetic number, because the mean of its divisors is an integer number (11059579245).

Almost surely, 2^133235401344 is an apocalyptic number.

It is an amenable number.

133235401344 is an abundant number, since it is smaller than the sum of its proper divisors (220671134496).

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

133235401344 is an equidigital number, since it uses as much as digits as its factorization.

133235401344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346967208 (or 346967196 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 133235401344 its reverse (443104532331), we get a palindrome (576339933675).

The spelling of 133235401344 in words is "one hundred thirty-three billion, two hundred thirty-five million, four hundred one thousand, three hundred forty-four".