166204627 has 2 divisors, whose sum is σ = 166204628. Its totient is φ = 166204626.

The previous prime is 166204607. The next prime is 166204667. The reversal of 166204627 is 726402661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166204627 - 2¹¹ = 166202579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166204592 and 166204601.

It is not a weakly prime, because it can be changed into another prime (166204607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83102313 + 83102314.

It is an arithmetic number, because the mean of its divisors is an integer number (83102314).

Almost surely, 2^166204627 is an apocalyptic number.

166204627 is a deficient number, since it is larger than the sum of its proper divisors (1).

166204627 is an equidigital number, since it uses as much as digits as its factorization.

166204627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 166204627 is about 12892.0373486893. The cubic root of 166204627 is about 549.8121970371.

The spelling of 166204627 in words is "one hundred sixty-six million, two hundred four thousand, six hundred twenty-seven".