105546665421143 has 2 divisors, whose sum is σ = 105546665421144. Its totient is φ = 105546665421142.

The previous prime is 105546665421133. The next prime is 105546665421161. The reversal of 105546665421143 is 341124566645501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105546665421143 - 2³⁶ = 105477945944407 is a prime.

It is a super-2 number, since 2×105546665421143² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105546665421133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (37) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52773332710571 + 52773332710572.

It is an arithmetic number, because the mean of its divisors is an integer number (52773332710572).

Almost surely, 2^{105546665421143} is an apocalyptic number.

105546665421143 is a deficient number, since it is larger than the sum of its proper divisors (1).

105546665421143 is an equidigital number, since it uses as much as digits as its factorization.

105546665421143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 105546665421143 in words is "one hundred five trillion, five hundred forty-six billion, six hundred sixty-five million, four hundred twenty-one thousand, one hundred forty-three".