2566800930 has 128 divisors (see below), whose sum is σ = 6778183680. Its totient is φ = 619269120.

The previous prime is 2566800923. The next prime is 2566800931. The reversal of 2566800930 is 390086652.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2566800931) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2829537 + ... + 2830443.

It is an arithmetic number, because the mean of its divisors is an integer number (52954560).

Almost surely, 2^2566800930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566800930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3389091840).

2566800930 is an abundant number, since it is smaller than the sum of its proper divisors (4211382750).

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

2566800930 is a wasteful number, since it uses less digits than its factorization.

2566800930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2566800930 is about 50663.6055763898. The cubic root of 2566800930 is about 1369.1910847987.

The spelling of 2566800930 in words is "two billion, five hundred sixty-six million, eight hundred thousand, nine hundred thirty".