10020543454507 has 4 divisors (see below), whose sum is σ = 10021275054936. Its totient is φ = 10019811854080.

The previous prime is 10020543454501. The next prime is 10020543454517. The reversal of 10020543454507 is 70545434502001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020543454507 is a prime.

It is a super-2 number, since 2×10020543454507² (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 10020543454507.

It is not an unprimeable number, because it can be changed into a prime (10020543454501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365779669 + ... + 365807062.

It is an arithmetic number, because the mean of its divisors is an integer number (2505318763734).

Almost surely, 2^{10020543454507} is an apocalyptic number.

10020543454507 is a deficient number, since it is larger than the sum of its proper divisors (731600429).

10020543454507 is an equidigital number, since it uses as much as digits as its factorization.

10020543454507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731600428.

The product of its (nonzero) digits is 336000, while the sum is 40.

Adding to 10020543454507 its reverse (70545434502001), we get a palindrome (80565977956508).

The spelling of 10020543454507 in words is "ten trillion, twenty billion, five hundred forty-three million, four hundred fifty-four thousand, five hundred seven".