133155023232 has 256 divisors, whose sum is σ = 442670469120. Its totient is φ = 34452203520.

The previous prime is 133155023227. The next prime is 133155023233. The reversal of 133155023232 is 232320551331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133155023232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133155023233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7767823 + ... + 7784945.

It is an arithmetic number, because the mean of its divisors is an integer number (1729181520).

Almost surely, 2^133155023232 is an apocalyptic number.

133155023232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133155023232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221335234560).

133155023232 is an abundant number, since it is smaller than the sum of its proper divisors (309515445888).

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

133155023232 is a wasteful number, since it uses less digits than its factorization.

133155023232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17421 (or 17409 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 133155023232 its reverse (232320551331), we get a palindrome (365475574563).

The spelling of 133155023232 in words is "one hundred thirty-three billion, one hundred fifty-five million, twenty-three thousand, two hundred thirty-two".