17121866668 has 6 divisors (see below), whose sum is σ = 29963266676. Its totient is φ = 8560933332.

The previous prime is 17121866653. The next prime is 17121866677. The reversal of 17121866668 is 86666812171.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2140233330 + ... + 2140233337.

Almost surely, 2^17121866668 is an apocalyptic number.

It is an amenable number.

17121866668 is a deficient number, since it is larger than the sum of its proper divisors (12841400008).

17121866668 is a wasteful number, since it uses less digits than its factorization.

17121866668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280466671 (or 4280466669 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The spelling of 17121866668 in words is "seventeen billion, one hundred twenty-one million, eight hundred sixty-six thousand, six hundred sixty-eight".