166302427 has 2 divisors, whose sum is σ = 166302428. Its totient is φ = 166302426.

The previous prime is 166302413. The next prime is 166302511. The reversal of 166302427 is 724203661.

It is a weak prime.

It is an emirp because it is prime and its reverse (724203661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166302427 - 2¹⁵ = 166269659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166302727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83151213 + 83151214.

It is an arithmetic number, because the mean of its divisors is an integer number (83151214).

Almost surely, 2^166302427 is an apocalyptic number.

166302427 is a deficient number, since it is larger than the sum of its proper divisors (1).

166302427 is an equidigital number, since it uses as much as digits as its factorization.

166302427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 166302427 is about 12895.8298298326. The cubic root of 166302427 is about 549.9200181215.

The spelling of 166302427 in words is "one hundred sixty-six million, three hundred two thousand, four hundred twenty-seven".