166050572771 has 2 divisors, whose sum is σ = 166050572772. Its totient is φ = 166050572770.

The previous prime is 166050572689. The next prime is 166050572839. The reversal of 166050572771 is 177275050661.

166050572771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (177275050661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166050572771 - 2²² = 166046378467 is a prime.

It is not a weakly prime, because it can be changed into another prime (166050572671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83025286385 + 83025286386.

It is an arithmetic number, because the mean of its divisors is an integer number (83025286386).

Almost surely, 2^166050572771 is an apocalyptic number.

166050572771 is a deficient number, since it is larger than the sum of its proper divisors (1).

166050572771 is an equidigital number, since it uses as much as digits as its factorization.

166050572771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 166050572771 in words is "one hundred sixty-six billion, fifty million, five hundred seventy-two thousand, seven hundred seventy-one".