166327471 has 2 divisors, whose sum is σ = 166327472. Its totient is φ = 166327470.

The previous prime is 166327429. The next prime is 166327489. The reversal of 166327471 is 174723661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166327471 - 2¹⁵ = 166294703 is a prime.

It is a super-3 number, since 3×166327471³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166327471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166327171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83163735 + 83163736.

It is an arithmetic number, because the mean of its divisors is an integer number (83163736).

Almost surely, 2^166327471 is an apocalyptic number.

166327471 is a deficient number, since it is larger than the sum of its proper divisors (1).

166327471 is an equidigital number, since it uses as much as digits as its factorization.

166327471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 166327471 is about 12896.8008048508. The cubic root of 166327471 is about 549.9476214582.

The spelling of 166327471 in words is "one hundred sixty-six million, three hundred twenty-seven thousand, four hundred seventy-one".