1165948742417 has 2 divisors, whose sum is σ = 1165948742418. Its totient is φ = 1165948742416.

The previous prime is 1165948742359. The next prime is 1165948742423. The reversal of 1165948742417 is 7142478495611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886151118736 + 279797623681 = 941356^2 + 528959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165948742417 - 2¹² = 1165948738321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165948742437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582974371208 + 582974371209.

It is an arithmetic number, because the mean of its divisors is an integer number (582974371209).

Almost surely, 2^{1165948742417} is an apocalyptic number.

It is an amenable number.

1165948742417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165948742417 is an equidigital number, since it uses as much as digits as its factorization.

1165948742417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 59.

The spelling of 1165948742417 in words is "one trillion, one hundred sixty-five billion, nine hundred forty-eight million, seven hundred forty-two thousand, four hundred seventeen".