2656530330 has 64 divisors (see below), whose sum is σ = 6757655040. Its totient is φ = 666051584.

The previous prime is 2656530319. The next prime is 2656530377. The reversal of 2656530330 is 330356562.

It is a junction number, because it is equal to n+sod(n) for n = 2656530291 and 2656530300.

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, 649231 + ... + 653309.

It is an arithmetic number, because the mean of its divisors is an integer number (105588360).

Almost surely, 2^2656530330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656530330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3378827520).

2656530330 is an abundant number, since it is smaller than the sum of its proper divisors (4101124710).

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

2656530330 is a wasteful number, since it uses less digits than its factorization.

2656530330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383.

The product of its (nonzero) digits is 48600, while the sum is 33.

The square root of 2656530330 is about 51541.5398489413. The cubic root of 2656530330 is about 1384.9632819226.

Adding to 2656530330 its reverse (330356562), we get a palindrome (2986886892).

The spelling of 2656530330 in words is "two billion, six hundred fifty-six million, five hundred thirty thousand, three hundred thirty".