201246663219449 has 2 divisors, whose sum is σ = 201246663219450. Its totient is φ = 201246663219448.

The previous prime is 201246663219439. The next prime is 201246663219491. The reversal of 201246663219449 is 944912366642102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194007792254224 + 7238870965225 = 13928668^2 + 2690515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201246663219449 is a prime.

It is not a weakly prime, because it can be changed into another prime (201246663219439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100623331609724 + 100623331609725.

It is an arithmetic number, because the mean of its divisors is an integer number (100623331609725).

Almost surely, 2^{201246663219449} is an apocalyptic number.

It is an amenable number.

201246663219449 is a deficient number, since it is larger than the sum of its proper divisors (1).

201246663219449 is an equidigital number, since it uses as much as digits as its factorization.

201246663219449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 201246663219449 in words is "two hundred one trillion, two hundred forty-six billion, six hundred sixty-three million, two hundred nineteen thousand, four hundred forty-nine".