1166049391141 has 2 divisors, whose sum is σ = 1166049391142. Its totient is φ = 1166049391140.

The previous prime is 1166049391103. The next prime is 1166049391181. The reversal of 1166049391141 is 1411939406611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1164087787041 + 1961604100 = 1078929^2 + 44290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166049391141 - 2¹¹ = 1166049389093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1166049391091 and 1166049391100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166049391181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583024695570 + 583024695571.

It is an arithmetic number, because the mean of its divisors is an integer number (583024695571).

Almost surely, 2^{1166049391141} is an apocalyptic number.

It is an amenable number.

1166049391141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166049391141 is an equidigital number, since it uses as much as digits as its factorization.

1166049391141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 1166049391141 in words is "one trillion, one hundred sixty-six billion, forty-nine million, three hundred ninety-one thousand, one hundred forty-one".