166560416262299 has 2 divisors, whose sum is σ = 166560416262300. Its totient is φ = 166560416262298.

The previous prime is 166560416262283. The next prime is 166560416262329. The reversal of 166560416262299 is 992262614065661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166560416262299 - 2⁴ = 166560416262283 is a prime.

It is not a weakly prime, because it can be changed into another prime (166560416262259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83280208131149 + 83280208131150.

It is an arithmetic number, because the mean of its divisors is an integer number (83280208131150).

Almost surely, 2^{166560416262299} is an apocalyptic number.

166560416262299 is a deficient number, since it is larger than the sum of its proper divisors (1).

166560416262299 is an equidigital number, since it uses as much as digits as its factorization.

166560416262299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 166560416262299 in words is "one hundred sixty-six trillion, five hundred sixty billion, four hundred sixteen million, two hundred sixty-two thousand, two hundred ninety-nine".