143166043443321 has 24 divisors (see below), whose sum is σ = 206975280632744. Its totient is φ = 95361011251200.

The previous prime is 143166043443307. The next prime is 143166043443359. The reversal of 143166043443321 is 123344340661341.

143166043443321 is a `hidden beast` number, since 1 + 4 + 3 + 1 + 6 + 604 + 3 + 4 + 4 + 3 + 32 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8085605990400 + 135080437452921 = 2843520^2 + 11622411^2 .

It is not a de Polignac number, because 143166043443321 - 2⁷ = 143166043443193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143166043443421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308224365 + ... + 308688501.

Almost surely, 2^{143166043443321} is an apocalyptic number.

It is an amenable number.

143166043443321 is a deficient number, since it is larger than the sum of its proper divisors (63809237189423).

143166043443321 is a wasteful number, since it uses less digits than its factorization.

143166043443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493881 (or 493878 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 143166043443321 in words is "one hundred forty-three trillion, one hundred sixty-six billion, forty-three million, four hundred forty-three thousand, three hundred twenty-one".