2566348736 has 84 divisors (see below), whose sum is σ = 6128537400. Its totient is φ = 1061899776.

The previous prime is 2566348723. The next prime is 2566348739. The reversal of 2566348736 is 6378436652.

It is a super-2 number, since 2×2566348736² = 13172291669537595392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566348739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76835 + ... + 105053.

Almost surely, 2^2566348736 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 2566348736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064268700).

2566348736 is an abundant number, since it is smaller than the sum of its proper divisors (3562188664).

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

2566348736 is a wasteful number, since it uses less digits than its factorization.

2566348736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28274 (or 28257 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 50.

The square root of 2566348736 is about 50659.1426694136. The cubic root of 2566348736 is about 1369.1106764913.

The spelling of 2566348736 in words is "two billion, five hundred sixty-six million, three hundred forty-eight thousand, seven hundred thirty-six".