20416014209 has 2 divisors, whose sum is σ = 20416014210. Its totient is φ = 20416014208.

The previous prime is 20416014191. The next prime is 20416014233. The reversal of 20416014209 is 90241061402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17398929025 + 3017085184 = 131905^2 + 54928^2 .

It is a cyclic number.

It is not a de Polignac number, because 20416014209 - 2²⁸ = 20147578753 is a prime.

It is not a weakly prime, because it can be changed into another prime (20416014259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10208007104 + 10208007105.

It is an arithmetic number, because the mean of its divisors is an integer number (10208007105).

Almost surely, 2^20416014209 is an apocalyptic number.

It is an amenable number.

20416014209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20416014209 is an equidigital number, since it uses as much as digits as its factorization.

20416014209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20416014209 in words is "twenty billion, four hundred sixteen million, fourteen thousand, two hundred nine".