20383726166 has 16 divisors (see below), whose sum is σ = 31431674160. Its totient is φ = 9907022880.

The previous prime is 20383726163. The next prime is 20383726177. The reversal of 20383726166 is 66162738302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383726163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51296 + ... + 208323.

It is an arithmetic number, because the mean of its divisors is an integer number (1964479635).

Almost surely, 2^20383726166 is an apocalyptic number.

20383726166 is a deficient number, since it is larger than the sum of its proper divisors (11047947994).

20383726166 is a wasteful number, since it uses less digits than its factorization.

20383726166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260719.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 20383726166 in words is "twenty billion, three hundred eighty-three million, seven hundred twenty-six thousand, one hundred sixty-six".