2066517171 has 8 divisors (see below), whose sum is σ = 3061506960. Its totient is φ = 1377678096.

The previous prime is 2066517169. The next prime is 2066517217. The reversal of 2066517171 is 1717156602.

It is not a de Polignac number, because 2066517171 - 2¹ = 2066517169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066513171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38268810 + ... + 38268863.

It is an arithmetic number, because the mean of its divisors is an integer number (382688370).

Almost surely, 2^2066517171 is an apocalyptic number.

2066517171 is a deficient number, since it is larger than the sum of its proper divisors (994989789).

2066517171 is an equidigital number, since it uses as much as digits as its factorization.

2066517171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76537682 (or 76537676 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 2066517171 is about 45458.9613937670. The cubic root of 2066517171 is about 1273.7367307739.

The spelling of 2066517171 in words is "two billion, sixty-six million, five hundred seventeen thousand, one hundred seventy-one".