12404555540401 has 2 divisors, whose sum is σ = 12404555540402. Its totient is φ = 12404555540400.

The previous prime is 12404555540393. The next prime is 12404555540417. The reversal of 12404555540401 is 10404555540421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10117005164176 + 2287550376225 = 3180724^2 + 1512465^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404555540401 - 2³ = 12404555540393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12404555540501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202277770200 + 6202277770201.

It is an arithmetic number, because the mean of its divisors is an integer number (6202277770201).

Almost surely, 2^{12404555540401} is an apocalyptic number.

It is an amenable number.

12404555540401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12404555540401 is an equidigital number, since it uses as much as digits as its factorization.

12404555540401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320000, while the sum is 40.

The spelling of 12404555540401 in words is "twelve trillion, four hundred four billion, five hundred fifty-five million, five hundred forty thousand, four hundred one".