1663500242207 has 2 divisors, whose sum is σ = 1663500242208. Its totient is φ = 1663500242206.

The previous prime is 1663500242171. The next prime is 1663500242269. The reversal of 1663500242207 is 7022420053661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1663500242207 - 2⁶ = 1663500242143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1663500272207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831750121103 + 831750121104.

It is an arithmetic number, because the mean of its divisors is an integer number (831750121104).

Almost surely, 2^{1663500242207} is an apocalyptic number.

1663500242207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663500242207 is an equidigital number, since it uses as much as digits as its factorization.

1663500242207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 1663500242207 its reverse (7022420053661), we get a palindrome (8685920295868).

The spelling of 1663500242207 in words is "one trillion, six hundred sixty-three billion, five hundred million, two hundred forty-two thousand, two hundred seven".