168108552 has 24 divisors (see below), whose sum is σ = 455294190. Its totient is φ = 56036160.

The previous prime is 168108547. The next prime is 168108557. The reversal of 168108552 is 255801861.

It is an interprime number because it is at equal distance from previous prime (168108547) and next prime (168108557).

It can be written as a sum of positive squares in only one way, i.e., 94595076 + 73513476 = 9726^2 + 8574^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (168108557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1167349 + ... + 1167492.

Almost surely, 2^168108552 is an apocalyptic number.

168108552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168108552 is an abundant number, since it is smaller than the sum of its proper divisors (287185638).

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

168108552 is a wasteful number, since it uses less digits than its factorization.

168108552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334853 (or 2334846 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 168108552 is about 12965.6682049172. The cubic root of 168108552 is about 551.9036536320.

The spelling of 168108552 in words is "one hundred sixty-eight million, one hundred eight thousand, five hundred fifty-two".