3543556220520 has 256 divisors, whose sum is σ = 11412372061440. Its totient is φ = 877047103488.

The previous prime is 3543556220483. The next prime is 3543556220521. The reversal of 3543556220520 is 250226553453.

It is not an unprimeable number, because it can be changed into a prime (3543556220521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94292454 + ... + 94330026.

It is an arithmetic number, because the mean of its divisors is an integer number (44579578365).

Almost surely, 2^{3543556220520} is an apocalyptic number.

3543556220520 is a gapful number since it is divisible by the number (30) 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 3543556220520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5706186030720).

3543556220520 is an abundant number, since it is smaller than the sum of its proper divisors (7868815840920).

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

3543556220520 is a wasteful number, since it uses less digits than its factorization.

3543556220520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38244 (or 38240 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 3543556220520 in words is "three trillion, five hundred forty-three billion, five hundred fifty-six million, two hundred twenty thousand, five hundred twenty".