20089166 has 16 divisors (see below), whose sum is σ = 31891968. Its totient is φ = 9471000.

The previous prime is 20089151. The next prime is 20089171. The reversal of 20089166 is 66198002.

It is a congruent number.

It is an unprimeable number.

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, 191 + ... + 6341.

It is an arithmetic number, because the mean of its divisors is an integer number (1993248).

Almost surely, 2^20089166 is an apocalyptic number.

20089166 is a deficient number, since it is larger than the sum of its proper divisors (11802802).

20089166 is a wasteful number, since it uses less digits than its factorization.

20089166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 20089166 is about 4482.0939302964. The cubic root of 20089166 is about 271.8445532646.

The spelling of 20089166 in words is "twenty million, eighty-nine thousand, one hundred sixty-six".