10666236774191 has 2 divisors, whose sum is σ = 10666236774192. Its totient is φ = 10666236774190.

The previous prime is 10666236774121. The next prime is 10666236774199. The reversal of 10666236774191 is 19147763266601.

10666236774191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10666236774191 - 2³⁴ = 10649056905007 is a prime.

It is a super-2 number, since 2×10666236774191² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10666236774191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10666236774199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333118387095 + 5333118387096.

It is an arithmetic number, because the mean of its divisors is an integer number (5333118387096).

Almost surely, 2^{10666236774191} is an apocalyptic number.

10666236774191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666236774191 is an equidigital number, since it uses as much as digits as its factorization.

10666236774191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 10666236774191 in words is "ten trillion, six hundred sixty-six billion, two hundred thirty-six million, seven hundred seventy-four thousand, one hundred ninety-one".