168877601 has 2 divisors, whose sum is σ = 168877602. Its totient is φ = 168877600.

The previous prime is 168877573. The next prime is 168877603. The reversal of 168877601 is 106778861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159997201 + 8880400 = 12649^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 168877601 - 2¹⁰ = 168876577 is a prime.

Together with 168877603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168877603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84438800 + 84438801.

It is an arithmetic number, because the mean of its divisors is an integer number (84438801).

Almost surely, 2^168877601 is an apocalyptic number.

It is an amenable number.

168877601 is a deficient number, since it is larger than the sum of its proper divisors (1).

168877601 is an equidigital number, since it uses as much as digits as its factorization.

168877601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 168877601 is about 12995.2914934602. The cubic root of 168877601 is about 552.7439744752.

The spelling of 168877601 in words is "one hundred sixty-eight million, eight hundred seventy-seven thousand, six hundred one".