10020543454547 has 2 divisors, whose sum is σ = 10020543454548. Its totient is φ = 10020543454546.

The previous prime is 10020543454543. The next prime is 10020543454567. The reversal of 10020543454547 is 74545434502001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10020543454547 - 2² = 10020543454543 is a prime.

It is a super-2 number, since 2×10020543454547² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10020543454498 and 10020543454507.

It is not a weakly prime, because it can be changed into another prime (10020543454541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010271727273 + 5010271727274.

It is an arithmetic number, because the mean of its divisors is an integer number (5010271727274).

Almost surely, 2^{10020543454547} is an apocalyptic number.

10020543454547 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020543454547 is an equidigital number, since it uses as much as digits as its factorization.

10020543454547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344000, while the sum is 44.

Adding to 10020543454547 its reverse (74545434502001), we get a palindrome (84565977956548).

The spelling of 10020543454547 in words is "ten trillion, twenty billion, five hundred forty-three million, four hundred fifty-four thousand, five hundred forty-seven".