169666272 has 96 divisors (see below), whose sum is σ = 497145600. Its totient is φ = 56294784.

The previous prime is 169666267. The next prime is 169666283. The reversal of 169666272 is 272666961.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309903 + ... + 310449.

It is an arithmetic number, because the mean of its divisors is an integer number (5178600).

Almost surely, 2^169666272 is an apocalyptic number.

169666272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169666272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248572800).

169666272 is an abundant number, since it is smaller than the sum of its proper divisors (327479328).

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

169666272 is a wasteful number, since it uses less digits than its factorization.

169666272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 911 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 169666272 is about 13025.6006387422. The cubic root of 169666272 is about 553.6030903522.

The spelling of 169666272 in words is "one hundred sixty-nine million, six hundred sixty-six thousand, two hundred seventy-two".