168648499 has 2 divisors, whose sum is σ = 168648500. Its totient is φ = 168648498.

The previous prime is 168648437. The next prime is 168648509. The reversal of 168648499 is 994846861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168648499 - 2¹⁵ = 168615731 is a prime.

It is not a weakly prime, because it can be changed into another prime (168648299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84324249 + 84324250.

It is an arithmetic number, because the mean of its divisors is an integer number (84324250).

Almost surely, 2^168648499 is an apocalyptic number.

168648499 is a deficient number, since it is larger than the sum of its proper divisors (1).

168648499 is an equidigital number, since it uses as much as digits as its factorization.

168648499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 168648499 is about 12986.4736938093. The cubic root of 168648499 is about 552.4939076470.

The spelling of 168648499 in words is "one hundred sixty-eight million, six hundred forty-eight thousand, four hundred ninety-nine".