3128500660 has 24 divisors (see below), whose sum is σ = 6570902016. Its totient is φ = 1251200160.

The previous prime is 3128500649. The next prime is 3128500663. The reversal of 3128500660 is 660058213.

3128500660 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 not an unprimeable number, because it can be changed into a prime (3128500663) 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, 243805 + ... + 256315.

It is an arithmetic number, because the mean of its divisors is an integer number (273787584).

Almost surely, 2^3128500660 is an apocalyptic number.

It is an amenable number.

3128500660 is an abundant number, since it is smaller than the sum of its proper divisors (3442401356).

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

3128500660 is a wasteful number, since it uses less digits than its factorization.

3128500660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25023 (or 25021 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3128500660 is about 55933.0015286146. The cubic root of 3128500660 is about 1462.5545849547.

Adding to 3128500660 its reverse (660058213), we get a palindrome (3788558873).

The spelling of 3128500660 in words is "three billion, one hundred twenty-eight million, five hundred thousand, six hundred sixty".