143666102533321 has 8 divisors (see below), whose sum is σ = 143782951779720. Its totient is φ = 143549290140672.

The previous prime is 143666102533277. The next prime is 143666102533367. The reversal of 143666102533321 is 123335201666341.

143666102533321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49902921640000 + 93763180893321 = 7064200^2 + 9683139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143666102533321 - 2³⁷ = 143528663579849 is a prime.

It is a super-2 number, since 2×143666102533321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143666102233321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411030 + ... + 17009503.

It is an arithmetic number, because the mean of its divisors is an integer number (17972868972465).

Almost surely, 2^{143666102533321} is an apocalyptic number.

It is an amenable number.

143666102533321 is a deficient number, since it is larger than the sum of its proper divisors (116849246399).

143666102533321 is a wasteful number, since it uses less digits than its factorization.

143666102533321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18426875.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 143666102533321 in words is "one hundred forty-three trillion, six hundred sixty-six billion, one hundred two million, five hundred thirty-three thousand, three hundred twenty-one".