168653134291 has 2 divisors, whose sum is σ = 168653134292. Its totient is φ = 168653134290.

The previous prime is 168653134201. The next prime is 168653134327. The reversal of 168653134291 is 192431356861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168653134291 - 2⁷ = 168653134163 is a prime.

It is not a weakly prime, because it can be changed into another prime (168653134201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84326567145 + 84326567146.

It is an arithmetic number, because the mean of its divisors is an integer number (84326567146).

Almost surely, 2^168653134291 is an apocalyptic number.

168653134291 is a deficient number, since it is larger than the sum of its proper divisors (1).

168653134291 is an equidigital number, since it uses as much as digits as its factorization.

168653134291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The spelling of 168653134291 in words is "one hundred sixty-eight billion, six hundred fifty-three million, one hundred thirty-four thousand, two hundred ninety-one".