168869855 has 16 divisors (see below), whose sum is σ = 252647424. Its totient is φ = 105269280.

The previous prime is 168869843. The next prime is 168869863. The reversal of 168869855 is 558968861.

It is not a de Polignac number, because 168869855 - 2⁶ = 168869791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168869855.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 218927 + ... + 219696.

It is an arithmetic number, because the mean of its divisors is an integer number (15790464).

Almost surely, 2^168869855 is an apocalyptic number.

168869855 is a deficient number, since it is larger than the sum of its proper divisors (83777569).

168869855 is a wasteful number, since it uses less digits than its factorization.

168869855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438646.

The product of its digits is 4147200, while the sum is 56.

The square root of 168869855 is about 12994.9934590211. The cubic root of 168869855 is about 552.7355233440.

The spelling of 168869855 in words is "one hundred sixty-eight million, eight hundred sixty-nine thousand, eight hundred fifty-five".