166271023 has 2 divisors, whose sum is σ = 166271024. Its totient is φ = 166271022.

The previous prime is 166270987. The next prime is 166271029. The reversal of 166271023 is 320172661.

166271023 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 (320172661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166271023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166270982 and 166271000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166271029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83135511 + 83135512.

It is an arithmetic number, because the mean of its divisors is an integer number (83135512).

Almost surely, 2^166271023 is an apocalyptic number.

166271023 is a deficient number, since it is larger than the sum of its proper divisors (1).

166271023 is an equidigital number, since it uses as much as digits as its factorization.

166271023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 166271023 is about 12894.6121694295. The cubic root of 166271023 is about 549.8854009170.

The spelling of 166271023 in words is "one hundred sixty-six million, two hundred seventy-one thousand, twenty-three".