2171617260 has 96 divisors (see below), whose sum is σ = 6147187200. Its totient is φ = 572789760.

The previous prime is 2171617211. The next prime is 2171617303. The reversal of 2171617260 is 627161712.

2171617260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2587921 + ... + 2588759.

It is an arithmetic number, because the mean of its divisors is an integer number (64033200).

Almost surely, 2^2171617260 is an apocalyptic number.

2171617260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2171617260 is an abundant number, since it is smaller than the sum of its proper divisors (3975569940).

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

2171617260 is a wasteful number, since it uses less digits than its factorization.

2171617260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 2171617260 is about 46600.6143736325. The cubic root of 2171617260 is about 1294.9741372175.

Adding to 2171617260 its reverse (627161712), we get a palindrome (2798778972).

The spelling of 2171617260 in words is "two billion, one hundred seventy-one million, six hundred seventeen thousand, two hundred sixty".