168553272 has 16 divisors (see below), whose sum is σ = 421383240. Its totient is φ = 56184416.

The previous prime is 168553271. The next prime is 168553279. The reversal of 168553272 is 272355861.

168553272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168553272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168553271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511503 + ... + 3511550.

Almost surely, 2^168553272 is an apocalyptic number.

168553272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168553272 is an abundant number, since it is smaller than the sum of its proper divisors (252829968).

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

168553272 is a wasteful number, since it uses less digits than its factorization.

168553272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023062 (or 7023058 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 168553272 is about 12982.8067843591. The cubic root of 168553272 is about 552.3898999164.

The spelling of 168553272 in words is "one hundred sixty-eight million, five hundred fifty-three thousand, two hundred seventy-two".