133144501534020 has 144 divisors (see below), whose sum is σ = 414796386251520. Its totient is φ = 34544827392768.

The previous prime is 133144501533991. The next prime is 133144501534021. The reversal of 133144501534020 is 20435105441331.

133144501534020 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 44 + 501 + 53 + 40 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (133144501534021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335192449 + ... + 335589431.

It is an arithmetic number, because the mean of its divisors is an integer number (2880530460080).

Almost surely, 2^{133144501534020} is an apocalyptic number.

133144501534020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133144501534020 is an abundant number, since it is smaller than the sum of its proper divisors (281651884717500).

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

133144501534020 is a wasteful number, since it uses less digits than its factorization.

133144501534020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447394 (or 447389 counting only the distinct ones).

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

Adding to 133144501534020 its reverse (20435105441331), we get a palindrome (153579606975351).

The spelling of 133144501534020 in words is "one hundred thirty-three trillion, one hundred forty-four billion, five hundred one million, five hundred thirty-four thousand, twenty".