1711664081 has 2 divisors, whose sum is σ = 1711664082. Its totient is φ = 1711664080.

The previous prime is 1711664041. The next prime is 1711664099. The reversal of 1711664081 is 1804661171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1414963456 + 296700625 = 37616^2 + 17225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1711664081 is a prime.

It is a super-2 number, since 2×1711664081² = 5859587852371149122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1711664041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855832040 + 855832041.

It is an arithmetic number, because the mean of its divisors is an integer number (855832041).

Almost surely, 2^1711664081 is an apocalyptic number.

It is an amenable number.

1711664081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1711664081 is an equidigital number, since it uses as much as digits as its factorization.

1711664081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1711664081 is about 41372.2622175776. The cubic root of 1711664081 is about 1196.2065580700.

The spelling of 1711664081 in words is "one billion, seven hundred eleven million, six hundred sixty-four thousand, eighty-one".