10649566709191 has 2 divisors, whose sum is σ = 10649566709192. Its totient is φ = 10649566709190.

The previous prime is 10649566709179. The next prime is 10649566709233. The reversal of 10649566709191 is 19190766594601.

10649566709191 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10649566709191 is a prime.

It is a super-2 number, since 2×10649566709191² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10649566709591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5324783354595 + 5324783354596.

It is an arithmetic number, because the mean of its divisors is an integer number (5324783354596).

Almost surely, 2^{10649566709191} is an apocalyptic number.

10649566709191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10649566709191 is an equidigital number, since it uses as much as digits as its factorization.

10649566709191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The spelling of 10649566709191 in words is "ten trillion, six hundred forty-nine billion, five hundred sixty-six million, seven hundred nine thousand, one hundred ninety-one".