711128660 has 48 divisors (see below), whose sum is σ = 1634592960. Its totient is φ = 257725440.

The previous prime is 711128647. The next prime is 711128707. The reversal of 711128660 is 66821117.

It is a happy number.

711128660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 62276 + ... + 72804.

It is an arithmetic number, because the mean of its divisors is an integer number (34054020).

Almost surely, 2^711128660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 711128660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817296480).

711128660 is an abundant number, since it is smaller than the sum of its proper divisors (923464300).

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

711128660 is a wasteful number, since it uses less digits than its factorization.

711128660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856 (or 10854 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 711128660 is about 26666.9957063033. The cubic root of 711128660 is about 892.5846090936.

Adding to 711128660 its reverse (66821117), we get a palindrome (777949777).

The spelling of 711128660 in words is "seven hundred eleven million, one hundred twenty-eight thousand, six hundred sixty".