133213541544 has 160 divisors (see below), whose sum is σ = 385522727040. Its totient is φ = 42952291200.

The previous prime is 133213541501. The next prime is 133213541567. The reversal of 133213541544 is 445145312331.

133213541544 is a `hidden beast` number, since 13 + 32 + 1 + 35 + 41 + 544 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 133213541499 and 133213541508.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2411109 + ... + 2465739.

It is an arithmetic number, because the mean of its divisors is an integer number (2409517044).

Almost surely, 2^133213541544 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 133213541544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192761363520).

133213541544 is an abundant number, since it is smaller than the sum of its proper divisors (252309185496).

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

133213541544 is a wasteful number, since it uses less digits than its factorization.

133213541544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54773 (or 54760 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 133213541544 its reverse (445145312331), we get a palindrome (578358853875).

The spelling of 133213541544 in words is "one hundred thirty-three billion, two hundred thirteen million, five hundred forty-one thousand, five hundred forty-four".