1165741222601 has 2 divisors, whose sum is σ = 1165741222602. Its totient is φ = 1165741222600.

The previous prime is 1165741222549. The next prime is 1165741222631. The reversal of 1165741222601 is 1062221475611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998970265225 + 166770957376 = 999485^2 + 408376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165741222601 - 2⁶ = 1165741222537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165741222631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582870611300 + 582870611301.

It is an arithmetic number, because the mean of its divisors is an integer number (582870611301).

Almost surely, 2^{1165741222601} is an apocalyptic number.

It is an amenable number.

1165741222601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165741222601 is an equidigital number, since it uses as much as digits as its factorization.

1165741222601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 1165741222601 in words is "one trillion, one hundred sixty-five billion, seven hundred forty-one million, two hundred twenty-two thousand, six hundred one".