10020543454553 has 16 divisors (see below), whose sum is σ = 10210233296400. Its totient is φ = 9831686860800.

The previous prime is 10020543454547. The next prime is 10020543454567. The reversal of 10020543454553 is 35545434502001.

It can be written as a sum of positive squares in 8 ways, for example, as 32491144009 + 9988052310544 = 180253^2 + 3160388^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020543454553 - 2⁸ = 10020543454297 is a prime.

It is a super-2 number, since 2×10020543454553² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10020543454553.

It is not an unprimeable number, because it can be changed into a prime (10020543454543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93641123 + ... + 93748071.

It is an arithmetic number, because the mean of its divisors is an integer number (638139581025).

Almost surely, 2^{10020543454553} is an apocalyptic number.

It is an amenable number.

10020543454553 is a deficient number, since it is larger than the sum of its proper divisors (189689841847).

10020543454553 is a wasteful number, since it uses less digits than its factorization.

10020543454553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110828.

The product of its (nonzero) digits is 720000, while the sum is 41.

Adding to 10020543454553 its reverse (35545434502001), we get a palindrome (45565977956554).

The spelling of 10020543454553 in words is "ten trillion, twenty billion, five hundred forty-three million, four hundred fifty-four thousand, five hundred fifty-three".