166230049 has 2 divisors, whose sum is σ = 166230050. Its totient is φ = 166230048.

The previous prime is 166230047. The next prime is 166230067. The reversal of 166230049 is 940032661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108576400 + 57653649 = 10420^2 + 7593^2 .

It is an emirp because it is prime and its reverse (940032661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166230049 - 2¹ = 166230047 is a prime.

Together with 166230047, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 166230049.

It is not a weakly prime, because it can be changed into another prime (166230041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83115024 + 83115025.

It is an arithmetic number, because the mean of its divisors is an integer number (83115025).

Almost surely, 2^166230049 is an apocalyptic number.

It is an amenable number.

166230049 is a deficient number, since it is larger than the sum of its proper divisors (1).

166230049 is an equidigital number, since it uses as much as digits as its factorization.

166230049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 166230049 is about 12893.0232684192. The cubic root of 166230049 is about 549.8402279717.

The spelling of 166230049 in words is "one hundred sixty-six million, two hundred thirty thousand, forty-nine".