10166561115589 has 2 divisors, whose sum is σ = 10166561115590. Its totient is φ = 10166561115588.

The previous prime is 10166561115559. The next prime is 10166561115629. The reversal of 10166561115589 is 98551116566101.

10166561115589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7787615796900 + 2378945318689 = 2790630^2 + 1542383^2 .

It is a cyclic number.

It is not a de Polignac number, because 10166561115589 - 2⁷ = 10166561115461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10166561115509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5083280557794 + 5083280557795.

It is an arithmetic number, because the mean of its divisors is an integer number (5083280557795).

Almost surely, 2^{10166561115589} is an apocalyptic number.

It is an amenable number.

10166561115589 is a deficient number, since it is larger than the sum of its proper divisors (1).

10166561115589 is an equidigital number, since it uses as much as digits as its factorization.

10166561115589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 55.

The spelling of 10166561115589 in words is "ten trillion, one hundred sixty-six billion, five hundred sixty-one million, one hundred fifteen thousand, five hundred eighty-nine".