20330341645487 has 2 divisors, whose sum is σ = 20330341645488. Its totient is φ = 20330341645486.

The previous prime is 20330341645447. The next prime is 20330341645511. The reversal of 20330341645487 is 78454614303302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20330341645487 - 2⁸ = 20330341645231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330341645447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165170822743 + 10165170822744.

It is an arithmetic number, because the mean of its divisors is an integer number (10165170822744).

Almost surely, 2^{20330341645487} is an apocalyptic number.

20330341645487 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330341645487 is an equidigital number, since it uses as much as digits as its factorization.

20330341645487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 50.

Adding to 20330341645487 its reverse (78454614303302), we get a palindrome (98784955948789).

The spelling of 20330341645487 in words is "twenty trillion, three hundred thirty billion, three hundred forty-one million, six hundred forty-five thousand, four hundred eighty-seven".