28666132112041 has 2 divisors, whose sum is σ = 28666132112042. Its totient is φ = 28666132112040.

The previous prime is 28666132112027. The next prime is 28666132112099. The reversal of 28666132112041 is 14021123166682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24915112182016 + 3751019930025 = 4991504^2 + 1936755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28666132112041 is a prime.

It is not a weakly prime, because it can be changed into another prime (28666132112341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14333066056020 + 14333066056021.

It is an arithmetic number, because the mean of its divisors is an integer number (14333066056021).

Almost surely, 2^{28666132112041} is an apocalyptic number.

It is an amenable number.

28666132112041 is a deficient number, since it is larger than the sum of its proper divisors (1).

28666132112041 is an equidigital number, since it uses as much as digits as its factorization.

28666132112041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 28666132112041 in words is "twenty-eight trillion, six hundred sixty-six billion, one hundred thirty-two million, one hundred twelve thousand, forty-one".