6554561253240 has 1024 divisors, whose sum is σ = 27978744729600. Its totient is φ = 1184233881600.

The previous prime is 6554561253181. The next prime is 6554561253257. The reversal of 6554561253240 is 423521654556.

It is a self number, because there is not a number n which added to its sum of digits gives 6554561253240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 142799734 + ... + 142845626.

It is an arithmetic number, because the mean of its divisors is an integer number (27322992900).

Almost surely, 2^{6554561253240} is an apocalyptic number.

6554561253240 is a gapful number since it is divisible by the number (60) 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 6554561253240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13989372364800).

6554561253240 is an abundant number, since it is smaller than the sum of its proper divisors (21424183476360).

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

6554561253240 is a wasteful number, since it uses less digits than its factorization.

6554561253240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46008 (or 46004 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 6554561253240 in words is "six trillion, five hundred fifty-four billion, five hundred sixty-one million, two hundred fifty-three thousand, two hundred forty".