2656000000 has 168 divisors, whose sum is σ = 6718273380. Its totient is φ = 1049600000.

The previous prime is 2655999977. The next prime is 2656000043. The reversal of 2656000000 is 6562.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 31999959 + ... + 32000041.

Almost surely, 2^2656000000 is an apocalyptic number.

2656000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3359136690).

2656000000 is an abundant number, since it is smaller than the sum of its proper divisors (4062273380).

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

2656000000 is an frugal number, since it uses more digits than its factorization.

2656000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2656000000 is about 51536.3949069005. The cubic root of 2656000000 is about 1384.8711145254.

Adding to 2656000000 its reverse (6562), we get a palindrome (2656006562).

The spelling of 2656000000 in words is "two billion, six hundred fifty-six million", and thus it is an aban number.