1165746976217 has 2 divisors, whose sum is σ = 1165746976218. Its totient is φ = 1165746976216.

The previous prime is 1165746976213. The next prime is 1165746976259. The reversal of 1165746976217 is 7126796475611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713693798416 + 452053177801 = 844804^2 + 672349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165746976217 - 2² = 1165746976213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165746976217.

It is not a weakly prime, because it can be changed into another prime (1165746976213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582873488108 + 582873488109.

It is an arithmetic number, because the mean of its divisors is an integer number (582873488109).

Almost surely, 2^{1165746976217} is an apocalyptic number.

It is an amenable number.

1165746976217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165746976217 is an equidigital number, since it uses as much as digits as its factorization.

1165746976217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26671680, while the sum is 62.

The spelling of 1165746976217 in words is "one trillion, one hundred sixty-five billion, seven hundred forty-six million, nine hundred seventy-six thousand, two hundred seventeen".