20026164171 has 32 divisors (see below), whose sum is σ = 29281208320. Its totient is φ = 12100233600.

The previous prime is 20026164163. The next prime is 20026164187. The reversal of 20026164171 is 17146162002.

It is not a de Polignac number, because 20026164171 - 2³ = 20026164163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20026164371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539706 + ... + 575616.

It is an arithmetic number, because the mean of its divisors is an integer number (915037760).

Almost surely, 2^20026164171 is an apocalyptic number.

20026164171 is a deficient number, since it is larger than the sum of its proper divisors (9255044149).

20026164171 is a wasteful number, since it uses less digits than its factorization.

20026164171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36187.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 20026164171 in words is "twenty billion, twenty-six million, one hundred sixty-four thousand, one hundred seventy-one".