10200985565447 has 2 divisors, whose sum is σ = 10200985565448. Its totient is φ = 10200985565446.

The previous prime is 10200985565437. The next prime is 10200985565471. The reversal of 10200985565447 is 74456558900201.

10200985565447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (74456558900201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10200985565447 - 2³⁴ = 10183805696263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200985565392 and 10200985565401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200985565437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100492782723 + 5100492782724.

It is an arithmetic number, because the mean of its divisors is an integer number (5100492782724).

Almost surely, 2^{10200985565447} is an apocalyptic number.

10200985565447 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200985565447 is an equidigital number, since it uses as much as digits as its factorization.

10200985565447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 10200985565447 in words is "ten trillion, two hundred billion, nine hundred eighty-five million, five hundred sixty-five thousand, four hundred forty-seven".