143666216346023 has 4 divisors (see below), whose sum is σ = 164189961538320. Its totient is φ = 123142471153728.

The previous prime is 143666216346013. The next prime is 143666216346071. The reversal of 143666216346023 is 320643612666341.

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

It is a cyclic number.

It is not a de Polignac number, because 143666216346023 - 2⁸ = 143666216345767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666216346013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10261872596138 + ... + 10261872596151.

It is an arithmetic number, because the mean of its divisors is an integer number (41047490384580).

Almost surely, 2^{143666216346023} is an apocalyptic number.

143666216346023 is a deficient number, since it is larger than the sum of its proper divisors (20523745192297).

143666216346023 is an equidigital number, since it uses as much as digits as its factorization.

143666216346023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20523745192296.

The product of its (nonzero) digits is 13436928, while the sum is 53.

The spelling of 143666216346023 in words is "one hundred forty-three trillion, six hundred sixty-six billion, two hundred sixteen million, three hundred forty-six thousand, twenty-three".