122661260636623 has 2 divisors, whose sum is σ = 122661260636624. Its totient is φ = 122661260636622.

The previous prime is 122661260636611. The next prime is 122661260636641. The reversal of 122661260636623 is 326636062166221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122661260636623 - 2⁵ = 122661260636591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122661260636323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61330630318311 + 61330630318312.

It is an arithmetic number, because the mean of its divisors is an integer number (61330630318312).

Almost surely, 2^{122661260636623} is an apocalyptic number.

122661260636623 is a deficient number, since it is larger than the sum of its proper divisors (1).

122661260636623 is an equidigital number, since it uses as much as digits as its factorization.

122661260636623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 122661260636623 in words is "one hundred twenty-two trillion, six hundred sixty-one billion, two hundred sixty million, six hundred thirty-six thousand, six hundred twenty-three".