168968297855 has 16 divisors (see below), whose sum is σ = 234116904000. Its totient is φ = 114669499392.

The previous prime is 168968297819. The next prime is 168968297887. The reversal of 168968297855 is 558792869861.

It is not a de Polignac number, because 168968297855 - 2¹⁸ = 168968035711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24881480 + ... + 24888269.

It is an arithmetic number, because the mean of its divisors is an integer number (14632306500).

Almost surely, 2^168968297855 is an apocalyptic number.

168968297855 is a deficient number, since it is larger than the sum of its proper divisors (65148606145).

168968297855 is an equidigital number, since it uses as much as digits as its factorization.

168968297855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49769858.

The product of its digits is 522547200, while the sum is 74.

The spelling of 168968297855 in words is "one hundred sixty-eight billion, nine hundred sixty-eight million, two hundred ninety-seven thousand, eight hundred fifty-five".