122646440663 has 2 divisors, whose sum is σ = 122646440664. Its totient is φ = 122646440662.

The previous prime is 122646440617. The next prime is 122646440669. The reversal of 122646440663 is 366044646221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122646440663 - 2¹⁸ = 122646178519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122646440669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61323220331 + 61323220332.

It is an arithmetic number, because the mean of its divisors is an integer number (61323220332).

Almost surely, 2^122646440663 is an apocalyptic number.

122646440663 is a deficient number, since it is larger than the sum of its proper divisors (1).

122646440663 is an equidigital number, since it uses as much as digits as its factorization.

122646440663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 122646440663 in words is "one hundred twenty-two billion, six hundred forty-six million, four hundred forty thousand, six hundred sixty-three".