168666803 has 2 divisors, whose sum is σ = 168666804. Its totient is φ = 168666802.

The previous prime is 168666793. The next prime is 168666833. The reversal of 168666803 is 308666861.

168666803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168666803 - 2²² = 164472499 is a prime.

It is not a weakly prime, because it can be changed into another prime (168666833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84333401 + 84333402.

It is an arithmetic number, because the mean of its divisors is an integer number (84333402).

Almost surely, 2^168666803 is an apocalyptic number.

168666803 is a deficient number, since it is larger than the sum of its proper divisors (1).

168666803 is an equidigital number, since it uses as much as digits as its factorization.

168666803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 168666803 is about 12987.1784079530. The cubic root of 168666803 is about 552.5138949434.

The spelling of 168666803 in words is "one hundred sixty-eight million, six hundred sixty-six thousand, eight hundred three".