68161099 has 2 divisors, whose sum is σ = 68161100. Its totient is φ = 68161098.

The previous prime is 68161097. The next prime is 68161153. The reversal of 68161099 is 99016186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68161099 - 2¹ = 68161097 is a prime.

Together with 68161097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68161091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34080549 + 34080550.

It is an arithmetic number, because the mean of its divisors is an integer number (34080550).

Almost surely, 2^68161099 is an apocalyptic number.

68161099 is a deficient number, since it is larger than the sum of its proper divisors (1).

68161099 is an equidigital number, since it uses as much as digits as its factorization.

68161099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 68161099 is about 8255.9735343568. The cubic root of 68161099 is about 408.4875846865.

The spelling of 68161099 in words is "sixty-eight million, one hundred sixty-one thousand, ninety-nine".