20445313535052 has 96 divisors (see below), whose sum is σ = 54852509171712. Its totient is φ = 5805988393536.

The previous prime is 20445313535041. The next prime is 20445313535063. The reversal of 20445313535052 is 25053531354402.

It is an interprime number because it is at equal distance from previous prime (20445313535041) and next prime (20445313535063).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 20445313534995 and 20445313535013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161300733 + ... + 161427435.

It is an arithmetic number, because the mean of its divisors is an integer number (571380303872).

Almost surely, 2^{20445313535052} 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 20445313535052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27426254585856).

20445313535052 is an abundant number, since it is smaller than the sum of its proper divisors (34407195636660).

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

20445313535052 is a wasteful number, since it uses less digits than its factorization.

20445313535052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138387 (or 138385 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 20445313535052 its reverse (25053531354402), we get a palindrome (45498844889454).

The spelling of 20445313535052 in words is "twenty trillion, four hundred forty-five billion, three hundred thirteen million, five hundred thirty-five thousand, fifty-two".