166546464143 has 2 divisors, whose sum is σ = 166546464144. Its totient is φ = 166546464142.

The previous prime is 166546464131. The next prime is 166546464209. The reversal of 166546464143 is 341464645661.

It is a weak prime.

It is an emirp because it is prime and its reverse (341464645661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166546464143 - 2⁶ = 166546464079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166546464091 and 166546464100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166546464043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83273232071 + 83273232072.

It is an arithmetic number, because the mean of its divisors is an integer number (83273232072).

Almost surely, 2^166546464143 is an apocalyptic number.

166546464143 is a deficient number, since it is larger than the sum of its proper divisors (1).

166546464143 is an equidigital number, since it uses as much as digits as its factorization.

166546464143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 50.

The spelling of 166546464143 in words is "one hundred sixty-six billion, five hundred forty-six million, four hundred sixty-four thousand, one hundred forty-three".