28160066 has 16 divisors (see below), whose sum is σ = 46951488. Its totient is φ = 12558000.

The previous prime is 28160063. The next prime is 28160081. The reversal of 28160066 is 66006182.

It is not an unprimeable number, because it can be changed into a prime (28160063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10910 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (2934468).

Almost surely, 2^28160066 is an apocalyptic number.

28160066 is a deficient number, since it is larger than the sum of its proper divisors (18791422).

28160066 is a wasteful number, since it uses less digits than its factorization.

28160066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24217.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28160066 is about 5306.6058832365. The cubic root of 28160066 is about 304.2364345453.

The spelling of 28160066 in words is "twenty-eight million, one hundred sixty thousand, sixty-six".