143666104443331 has 4 divisors (see below), whose sum is σ = 143667559668664. Its totient is φ = 143664649218000.

The previous prime is 143666104443263. The next prime is 143666104443341. The reversal of 143666104443331 is 133344401666341.

143666104443331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143666104443331 is a prime.

It is a super-2 number, since 2×143666104443331² (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 (143666104443341) 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, 727464570 + ... + 727662031.

It is an arithmetic number, because the mean of its divisors is an integer number (35916889917166).

Almost surely, 2^{143666104443331} is an apocalyptic number.

143666104443331 is a deficient number, since it is larger than the sum of its proper divisors (1455225333).

143666104443331 is an equidigital number, since it uses as much as digits as its factorization.

143666104443331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455225332.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 143666104443331 in words is "one hundred forty-three trillion, six hundred sixty-six billion, one hundred four million, four hundred forty-three thousand, three hundred thirty-one".