2171717160 has 64 divisors (see below), whose sum is σ = 6525074880. Its totient is φ = 578242560.

The previous prime is 2171717153. The next prime is 2171717209. The reversal of 2171717160 is 617171712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67315 + ... + 94205.

It is an arithmetic number, because the mean of its divisors is an integer number (101954295).

Almost surely, 2^2171717160 is an apocalyptic number.

2171717160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2171717160 is an abundant number, since it is smaller than the sum of its proper divisors (4353357720).

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

2171717160 is a wasteful number, since it uses less digits than its factorization.

2171717160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27578 (or 27574 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 33.

The square root of 2171717160 is about 46601.6862355859. The cubic root of 2171717160 is about 1294.9939942974.

Adding to 2171717160 its reverse (617171712), we get a palindrome (2788888872).

The spelling of 2171717160 in words is "two billion, one hundred seventy-one million, seven hundred seventeen thousand, one hundred sixty".