143163411542561 has 4 divisors (see below), whose sum is σ = 143252167533972. Its totient is φ = 143074655551152.

The previous prime is 143163411542549. The next prime is 143163411542597. The reversal of 143163411542561 is 165245114361341.

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 100337904968161 + 42825506574400 = 10016881^2 + 6544120^2 .

It is a cyclic number.

It is not a de Polignac number, because 143163411542561 - 2³⁰ = 143162337800737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143163411542521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44377993286 + ... + 44377996511.

It is an arithmetic number, because the mean of its divisors is an integer number (35813041883493).

Almost surely, 2^{143163411542561} is an apocalyptic number.

It is an amenable number.

143163411542561 is a deficient number, since it is larger than the sum of its proper divisors (88755991411).

143163411542561 is an equidigital number, since it uses as much as digits as its factorization.

143163411542561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88755991410.

The product of its digits is 1036800, while the sum is 47.

The spelling of 143163411542561 in words is "one hundred forty-three trillion, one hundred sixty-three billion, four hundred eleven million, five hundred forty-two thousand, five hundred sixty-one".