133534005551220 has 96 divisors (see below), whose sum is σ = 386299896853248. Its totient is φ = 34439195768832.

The previous prime is 133534005551201. The next prime is 133534005551227. The reversal of 133534005551220 is 22155500435331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133534005551227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179720437 + ... + 180461916.

It is an arithmetic number, because the mean of its divisors is an integer number (4023957258888).

Almost surely, 2^{133534005551220} is an apocalyptic number.

133534005551220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133534005551220 is an abundant number, since it is smaller than the sum of its proper divisors (252765891302028).

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

133534005551220 is a wasteful number, since it uses less digits than its factorization.

133534005551220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360182569 (or 360182567 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 133534005551220 its reverse (22155500435331), we get a palindrome (155689505986551).

The spelling of 133534005551220 in words is "one hundred thirty-three trillion, five hundred thirty-four billion, five million, five hundred fifty-one thousand, two hundred twenty".