20353234544000 has 128 divisors (see below), whose sum is σ = 50607018708480. Its totient is φ = 8140684185600.

The previous prime is 20353234543921. The next prime is 20353234544017. The reversal of 20353234544000 is 44543235302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256968404 + ... + 257047596.

It is an arithmetic number, because the mean of its divisors is an integer number (395367333660).

Almost surely, 2^{20353234544000} is an apocalyptic number.

20353234544000 is a gapful number since it is divisible by the number (20) 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 20353234544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25303509354240).

20353234544000 is an abundant number, since it is smaller than the sum of its proper divisors (30253784164480).

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

20353234544000 is an equidigital number, since it uses as much as digits as its factorization.

20353234544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95285 (or 95263 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 20353234544000 its reverse (44543235302), we get a palindrome (20397777779302).

The spelling of 20353234544000 in words is "twenty trillion, three hundred fifty-three billion, two hundred thirty-four million, five hundred forty-four thousand".