166226471 has 2 divisors, whose sum is σ = 166226472. Its totient is φ = 166226470.

The previous prime is 166226453. The next prime is 166226477. The reversal of 166226471 is 174622661.

166226471 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 a cyclic number.

It is not a de Polignac number, because 166226471 - 2¹⁴ = 166210087 is a prime.

It is a super-3 number, since 3×166226471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166226477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83113235 + 83113236.

It is an arithmetic number, because the mean of its divisors is an integer number (83113236).

Almost surely, 2^166226471 is an apocalyptic number.

166226471 is a deficient number, since it is larger than the sum of its proper divisors (1).

166226471 is an equidigital number, since it uses as much as digits as its factorization.

166226471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 166226471 is about 12892.8845104577. The cubic root of 166226471 is about 549.8362829521.

The spelling of 166226471 in words is "one hundred sixty-six million, two hundred twenty-six thousand, four hundred seventy-one".