168353872 has 40 divisors (see below), whose sum is σ = 335728512. Its totient is φ = 81734400.

The previous prime is 168353863. The next prime is 168353891. The reversal of 168353872 is 278353861.

168353872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177303 + ... + 178249.

Almost surely, 2^168353872 is an apocalyptic number.

It is an amenable number.

168353872 is a deficient number, since it is larger than the sum of its proper divisors (167374640).

168353872 is a wasteful number, since it uses less digits than its factorization.

168353872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1261 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 168353872 is about 12975.1251246375. The cubic root of 168353872 is about 552.1719865962.

It can be divided in two parts, 1683 and 53872, that added together give a palindrome (55555).

The spelling of 168353872 in words is "one hundred sixty-eight million, three hundred fifty-three thousand, eight hundred seventy-two".