163545204041441 has 2 divisors, whose sum is σ = 163545204041442. Its totient is φ = 163545204041440.

The previous prime is 163545204041431. The next prime is 163545204041473. The reversal of 163545204041441 is 144140402545361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125842177843600 + 37703026197841 = 11217940^2 + 6140279^2 .

It is an emirp because it is prime and its reverse (144140402545361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163545204041441 - 2²⁶ = 163545136932577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163545204041392 and 163545204041401.

It is not a weakly prime, because it can be changed into another prime (163545204041431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81772602020720 + 81772602020721.

It is an arithmetic number, because the mean of its divisors is an integer number (81772602020721).

Almost surely, 2^{163545204041441} is an apocalyptic number.

It is an amenable number.

163545204041441 is a deficient number, since it is larger than the sum of its proper divisors (1).

163545204041441 is an equidigital number, since it uses as much as digits as its factorization.

163545204041441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 163545204041441 in words is "one hundred sixty-three trillion, five hundred forty-five billion, two hundred four million, forty-one thousand, four hundred forty-one".