166474226 has 4 divisors (see below), whose sum is σ = 249711342. Its totient is φ = 83237112.

The previous prime is 166474201. The next prime is 166474229. The reversal of 166474226 is 622474661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 159997201 + 6477025 = 12649^2 + 2545^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166474226.

It is not an unprimeable number, because it can be changed into a prime (166474229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41618555 + ... + 41618558.

Almost surely, 2^166474226 is an apocalyptic number.

166474226 is a deficient number, since it is larger than the sum of its proper divisors (83237116).

166474226 is an equidigital number, since it uses as much as digits as its factorization.

166474226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83237115.

The product of its digits is 96768, while the sum is 38.

The square root of 166474226 is about 12902.4891396970. The cubic root of 166474226 is about 550.1093182153.

The spelling of 166474226 in words is "one hundred sixty-six million, four hundred seventy-four thousand, two hundred twenty-six".