166024013 has 2 divisors, whose sum is σ = 166024014. Its totient is φ = 166024012.

The previous prime is 166024009. The next prime is 166024021. The reversal of 166024013 is 310420661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160326244 + 5697769 = 12662^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 166024013 - 2² = 166024009 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166024013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166024063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83012006 + 83012007.

It is an arithmetic number, because the mean of its divisors is an integer number (83012007).

Almost surely, 2^166024013 is an apocalyptic number.

It is an amenable number.

166024013 is a deficient number, since it is larger than the sum of its proper divisors (1).

166024013 is an equidigital number, since it uses as much as digits as its factorization.

166024013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 166024013 is about 12885.0305781554. The cubic root of 166024013 is about 549.6129651732.

Adding to 166024013 its reverse (310420661), we get a palindrome (476444674).

The spelling of 166024013 in words is "one hundred sixty-six million, twenty-four thousand, thirteen".