1700505665161 has 2 divisors, whose sum is σ = 1700505665162. Its totient is φ = 1700505665160.

The previous prime is 1700505665129. The next prime is 1700505665179. The reversal of 1700505665161 is 1615665050071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1650248544400 + 50257120761 = 1284620^2 + 224181^2 .

It is an emirp because it is prime and its reverse (1615665050071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1700505665161 - 2⁵ = 1700505665129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1700505665191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850252832580 + 850252832581.

It is an arithmetic number, because the mean of its divisors is an integer number (850252832581).

Almost surely, 2^{1700505665161} is an apocalyptic number.

It is an amenable number.

1700505665161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1700505665161 is an equidigital number, since it uses as much as digits as its factorization.

1700505665161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 1700505665161 in words is "one trillion, seven hundred billion, five hundred five million, six hundred sixty-five thousand, one hundred sixty-one".