168855156 has 36 divisors (see below), whose sum is σ = 427278852. Its totient is φ = 56225664.

The previous prime is 168855143. The next prime is 168855199. The reversal of 168855156 is 651558861.

168855156 is a `hidden beast` number, since 16 + 88 + 551 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54022500 + 114832656 = 7350^2 + 10716^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44136 + ... + 47808.

It is an arithmetic number, because the mean of its divisors is an integer number (11868857).

Almost surely, 2^168855156 is an apocalyptic number.

It is an amenable number.

168855156 is an abundant number, since it is smaller than the sum of its proper divisors (258423696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168855156 is a wasteful number, since it uses less digits than its factorization.

168855156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4955 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 168855156 is about 12994.4278827504. The cubic root of 168855156 is about 552.7194855592.

The spelling of 168855156 in words is "one hundred sixty-eight million, eight hundred fifty-five thousand, one hundred fifty-six".