206224179449 has 2 divisors, whose sum is σ = 206224179450. Its totient is φ = 206224179448.

The previous prime is 206224179419. The next prime is 206224179533. The reversal of 206224179449 is 944971422602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171164238400 + 35059941049 = 413720^2 + 187243^2 .

It is a cyclic number.

It is not a de Polignac number, because 206224179449 - 2⁸ = 206224179193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206224179397 and 206224179406.

It is not a weakly prime, because it can be changed into another prime (206224179419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103112089724 + 103112089725.

It is an arithmetic number, because the mean of its divisors is an integer number (103112089725).

Almost surely, 2^206224179449 is an apocalyptic number.

It is an amenable number.

206224179449 is a deficient number, since it is larger than the sum of its proper divisors (1).

206224179449 is an equidigital number, since it uses as much as digits as its factorization.

206224179449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 206224179449 in words is "two hundred six billion, two hundred twenty-four million, one hundred seventy-nine thousand, four hundred forty-nine".