133205052552 has 128 divisors (see below), whose sum is σ = 408241935360. Its totient is φ = 35640126720.

The previous prime is 133205052499. The next prime is 133205052569. The reversal of 133205052552 is 255250502331.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 764818 + ... + 922689.

It is an arithmetic number, because the mean of its divisors is an integer number (3189390120).

Almost surely, 2^133205052552 is an apocalyptic number.

133205052552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133205052552 is an abundant number, since it is smaller than the sum of its proper divisors (275036882808).

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

133205052552 is a wasteful number, since it uses less digits than its factorization.

133205052552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687563 (or 1687559 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 133205052552 its reverse (255250502331), we get a palindrome (388455554883).

The spelling of 133205052552 in words is "one hundred thirty-three billion, two hundred five million, fifty-two thousand, five hundred fifty-two".