133539705040 has 120 divisors (see below), whose sum is σ = 362547724032. Its totient is φ = 44810476800.

The previous prime is 133539704981. The next prime is 133539705049. The reversal of 133539705040 is 40507935331.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 133539704984 and 133539705002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133539705049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1183065 + ... + 1291015.

Almost surely, 2^133539705040 is an apocalyptic number.

133539705040 is a gapful number since it is divisible by the number (10) 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 133539705040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181273862016).

133539705040 is an abundant number, since it is smaller than the sum of its proper divisors (229008018992).

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

133539705040 is a wasteful number, since it uses less digits than its factorization.

133539705040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108065 (or 108012 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 40.

The spelling of 133539705040 in words is "one hundred thirty-three billion, five hundred thirty-nine million, seven hundred five thousand, forty".