168916855 has 4 divisors (see below), whose sum is σ = 202700232. Its totient is φ = 135133480.

The previous prime is 168916841. The next prime is 168916871. The reversal of 168916855 is 558619861.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 168916855 - 2¹⁵ = 168884087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168916799 and 168916808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16891681 + ... + 16891690.

It is an arithmetic number, because the mean of its divisors is an integer number (50675058).

Almost surely, 2^168916855 is an apocalyptic number.

168916855 is a deficient number, since it is larger than the sum of its proper divisors (33783377).

168916855 is an equidigital number, since it uses as much as digits as its factorization.

168916855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33783376.

The product of its digits is 518400, while the sum is 49.

The square root of 168916855 is about 12996.8017219622. The cubic root of 168916855 is about 552.7867978592.

The spelling of 168916855 in words is "one hundred sixty-eight million, nine hundred sixteen thousand, eight hundred fifty-five".