20171712160 has 48 divisors (see below), whose sum is σ = 47664330336. Its totient is φ = 8067218688.

The previous prime is 20171712107. The next prime is 20171712161. The reversal of 20171712160 is 6121717102.

It is not an unprimeable number, because it can be changed into a prime (20171712161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463059 + ... + 1476781.

It is an arithmetic number, because the mean of its divisors is an integer number (993006882).

Almost surely, 2^20171712160 is an apocalyptic number.

20171712160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20171712160 is an abundant number, since it is smaller than the sum of its proper divisors (27492618176).

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

20171712160 is a wasteful number, since it uses less digits than its factorization.

20171712160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22925 (or 22917 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

The spelling of 20171712160 in words is "twenty billion, one hundred seventy-one million, seven hundred twelve thousand, one hundred sixty".