10020543454500 has 144 divisors (see below), whose sum is σ = 29349598492032. Its totient is φ = 2656687094400.

The previous prime is 10020543454483. The next prime is 10020543454501. The reversal of 10020543454500 is 545434502001.

It is a super-2 number, since 2×10020543454500² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10020543454501) 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 47 ways as a sum of consecutive naturals, for example, 44781897 + ... + 45005103.

Almost surely, 2^{10020543454500} is an apocalyptic number.

10020543454500 is a gapful number since it is divisible by the number (10) 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 10020543454500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14674799246016).

10020543454500 is an abundant number, since it is smaller than the sum of its proper divisors (19329055037532).

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

10020543454500 is a wasteful number, since it uses less digits than its factorization.

10020543454500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223575 (or 223390 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 10020543454500 its reverse (545434502001), we get a palindrome (10565977956501).

The spelling of 10020543454500 in words is "ten trillion, twenty billion, five hundred forty-three million, four hundred fifty-four thousand, five hundred".