171711668 has 12 divisors (see below), whose sum is σ = 310857540. Its totient is φ = 82895232.

The previous prime is 171711667. The next prime is 171711671. The reversal of 171711668 is 866117171.

It can be written as a sum of positive squares in 2 ways, for example, as 37429924 + 134281744 = 6118^2 + 11588^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171711667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740021 + ... + 740252.

It is an arithmetic number, because the mean of its divisors is an integer number (25904795).

Almost surely, 2^171711668 is an apocalyptic number.

It is an amenable number.

171711668 is a deficient number, since it is larger than the sum of its proper divisors (139145872).

171711668 is a wasteful number, since it uses less digits than its factorization.

171711668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480306 (or 1480304 counting only the distinct ones).

The product of its digits is 14112, while the sum is 38.

The square root of 171711668 is about 13103.8798834544. The cubic root of 171711668 is about 555.8188470104.

The spelling of 171711668 in words is "one hundred seventy-one million, seven hundred eleven thousand, six hundred sixty-eight".