2559066639840 has 192 divisors, whose sum is σ = 8957643448320. Its totient is φ = 682348423680.

The previous prime is 2559066639823. The next prime is 2559066639889. The reversal of 2559066639840 is 489366609552.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 53505217 + ... + 53553023.

It is an arithmetic number, because the mean of its divisors is an integer number (46654392960).

Almost surely, 2^{2559066639840} is an apocalyptic number.

2559066639840 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 2559066639840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4478821724160).

2559066639840 is an abundant number, since it is smaller than the sum of its proper divisors (6398576808480).

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

2559066639840 is a wasteful number, since it uses less digits than its factorization.

2559066639840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60222 (or 60208 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 63.

The spelling of 2559066639840 in words is "two trillion, five hundred fifty-nine billion, sixty-six million, six hundred thirty-nine thousand, eight hundred forty".