12662706433541 has 2 divisors, whose sum is σ = 12662706433542. Its totient is φ = 12662706433540.

The previous prime is 12662706433477. The next prime is 12662706433549. The reversal of 12662706433541 is 14533460726621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11628468282916 + 1034238150625 = 3410054^2 + 1016975^2 .

It is a cyclic number.

It is not a de Polignac number, because 12662706433541 - 2⁶ = 12662706433477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12662706433541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12662706433549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331353216770 + 6331353216771.

It is an arithmetic number, because the mean of its divisors is an integer number (6331353216771).

Almost surely, 2^{12662706433541} is an apocalyptic number.

It is an amenable number.

12662706433541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662706433541 is an equidigital number, since it uses as much as digits as its factorization.

12662706433541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 12662706433541 in words is "twelve trillion, six hundred sixty-two billion, seven hundred six million, four hundred thirty-three thousand, five hundred forty-one".