168034690609 has 2 divisors, whose sum is σ = 168034690610. Its totient is φ = 168034690608.

The previous prime is 168034690547. The next prime is 168034690613. The reversal of 168034690609 is 906096430861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156321390625 + 11713299984 = 395375^2 + 108228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168034690609 is a prime.

It is not a weakly prime, because it can be changed into another prime (168034690009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84017345304 + 84017345305.

It is an arithmetic number, because the mean of its divisors is an integer number (84017345305).

Almost surely, 2^168034690609 is an apocalyptic number.

It is an amenable number.

168034690609 is a deficient number, since it is larger than the sum of its proper divisors (1).

168034690609 is an equidigital number, since it uses as much as digits as its factorization.

168034690609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 168034690609 in words is "one hundred sixty-eight billion, thirty-four million, six hundred ninety thousand, six hundred nine".