133433504020 has 24 divisors (see below), whose sum is σ = 281382796800. Its totient is φ = 53150080032.

The previous prime is 133433503991. The next prime is 133433504093. The reversal of 133433504020 is 20405334331.

It is a self number, because there is not a number n which added to its sum of digits gives 133433504020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13952700 + ... + 13962259.

It is an arithmetic number, because the mean of its divisors is an integer number (11724283200).

Almost surely, 2^133433504020 is an apocalyptic number.

133433504020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133433504020 is an abundant number, since it is smaller than the sum of its proper divisors (147949292780).

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

133433504020 is a wasteful number, since it uses less digits than its factorization.

133433504020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915207 (or 27915205 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 133433504020 its reverse (20405334331), we get a palindrome (153838838351).

The spelling of 133433504020 in words is "one hundred thirty-three billion, four hundred thirty-three million, five hundred four thousand, twenty".