20335451025552 has 160 divisors (see below), whose sum is σ = 56678186947200. Its totient is φ = 6245576257536.

The previous prime is 20335451025523. The next prime is 20335451025559. The reversal of 20335451025552 is 25552015453302.

It is not an unprimeable number, because it can be changed into a prime (20335451025559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207344843 + ... + 1207361685.

It is an arithmetic number, because the mean of its divisors is an integer number (354238668420).

Almost surely, 2^{20335451025552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20335451025552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28339093473600).

20335451025552 is an abundant number, since it is smaller than the sum of its proper divisors (36342735921648).

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

20335451025552 is a wasteful number, since it uses less digits than its factorization.

20335451025552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20305 (or 20299 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 42.

Adding to 20335451025552 its reverse (25552015453302), we get a palindrome (45887466478854).

The spelling of 20335451025552 in words is "twenty trillion, three hundred thirty-five billion, four hundred fifty-one million, twenty-five thousand, five hundred fifty-two".