10205543603161 has 4 divisors (see below), whose sum is σ = 10320212632500. Its totient is φ = 10090874573824.

The previous prime is 10205543603089. The next prime is 10205543603173. The reversal of 10205543603161 is 16130634550201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1341936896400 + 8863606706761 = 1158420^2 + 2977181^2 .

It is a cyclic number.

It is not a de Polignac number, because 10205543603161 - 2¹³ = 10205543594969 is a prime.

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 10205543603161.

It is not an unprimeable number, because it can be changed into a prime (10205543603861) 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, 57334514536 + ... + 57334514713.

It is an arithmetic number, because the mean of its divisors is an integer number (2580053158125).

Almost surely, 2^{10205543603161} is an apocalyptic number.

It is an amenable number.

10205543603161 is a deficient number, since it is larger than the sum of its proper divisors (114669029339).

10205543603161 is an equidigital number, since it uses as much as digits as its factorization.

10205543603161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114669029338.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 10205543603161 in words is "ten trillion, two hundred five billion, five hundred forty-three million, six hundred three thousand, one hundred sixty-one".