16659272 has 16 divisors (see below), whose sum is σ = 35698560. Its totient is φ = 7139664.

The previous prime is 16659271. The next prime is 16659281. The reversal of 16659272 is 27295661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16659271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 148688 + ... + 148799.

It is an arithmetic number, because the mean of its divisors is an integer number (2231160).

Almost surely, 2^16659272 is an apocalyptic number.

It is an amenable number.

16659272 is an abundant number, since it is smaller than the sum of its proper divisors (19039288).

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

16659272 is a wasteful number, since it uses less digits than its factorization.

16659272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297500 (or 297496 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 16659272 is about 4081.5771461532. The cubic root of 16659272 is about 255.3986945240.

The spelling of 16659272 in words is "sixteen million, six hundred fifty-nine thousand, two hundred seventy-two".