2566222992 has 160 divisors (see below), whose sum is σ = 8021808000. Its totient is φ = 782369280.

The previous prime is 2566222991. The next prime is 2566222993. The reversal of 2566222992 is 2992226652.

It is an interprime number because it is at equal distance from previous prime (2566222991) and next prime (2566222993).

It is not an unprimeable number, because it can be changed into a prime (2566222991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232642 + ... + 243422.

It is an arithmetic number, because the mean of its divisors is an integer number (50136300).

Almost surely, 2^2566222992 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 2566222992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4010904000).

2566222992 is an abundant number, since it is smaller than the sum of its proper divisors (5455585008).

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

2566222992 is a wasteful number, since it uses less digits than its factorization.

2566222992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10846 (or 10834 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 2566222992 is about 50657.9015751738. The cubic root of 2566222992 is about 1369.0883152455.

The spelling of 2566222992 in words is "two billion, five hundred sixty-six million, two hundred twenty-two thousand, nine hundred ninety-two".