2566212751872 has 960 divisors, whose sum is σ = 9885815267328. Its totient is φ = 644972544000.

The previous prime is 2566212751853. The next prime is 2566212751909. The reversal of 2566212751872 is 2781572126652.

It is a happy number.

2566212751872 is a `hidden beast` number, since 2 + 5 + 6 + 621 + 2 + 7 + 5 + 1 + 8 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 296976672 + ... + 296985312.

Almost surely, 2^{2566212751872} is an apocalyptic number.

2566212751872 is a gapful number since it is divisible by the number (22) 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 2566212751872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4942907633664).

2566212751872 is an abundant number, since it is smaller than the sum of its proper divisors (7319602515456).

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

2566212751872 is an equidigital number, since it uses as much as digits as its factorization.

2566212751872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8723 (or 8695 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 2566212751872 in words is "two trillion, five hundred sixty-six billion, two hundred twelve million, seven hundred fifty-one thousand, eight hundred seventy-two".