166210133743 has 2 divisors, whose sum is σ = 166210133744. Its totient is φ = 166210133742.

The previous prime is 166210133723. The next prime is 166210133809. The reversal of 166210133743 is 347331012661.

It is a weak prime.

It is an emirp because it is prime and its reverse (347331012661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166210133743 - 2¹⁷ = 166210002671 is a prime.

It is a super-4 number, since 4×166210133743⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166210133723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83105066871 + 83105066872.

It is an arithmetic number, because the mean of its divisors is an integer number (83105066872).

Almost surely, 2^166210133743 is an apocalyptic number.

166210133743 is a deficient number, since it is larger than the sum of its proper divisors (1).

166210133743 is an equidigital number, since it uses as much as digits as its factorization.

166210133743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 166210133743 in words is "one hundred sixty-six billion, two hundred ten million, one hundred thirty-three thousand, seven hundred forty-three".