133485877632 has 128 divisors (see below), whose sum is σ = 362629094400. Its totient is φ = 43486883840.

The previous prime is 133485877627. The next prime is 133485877639. The reversal of 133485877632 is 236778584331.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133485877639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13729669 + ... + 13739387.

It is an arithmetic number, because the mean of its divisors is an integer number (2833039800).

Almost surely, 2^133485877632 is an apocalyptic number.

133485877632 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 133485877632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181314547200).

133485877632 is an abundant number, since it is smaller than the sum of its proper divisors (229143216768).

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

133485877632 is an equidigital number, since it uses as much as digits as its factorization.

133485877632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544 (or 10532 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 57.

The spelling of 133485877632 in words is "one hundred thirty-three billion, four hundred eighty-five million, eight hundred seventy-seven thousand, six hundred thirty-two".