6541105005636 has 48 divisors (see below), whose sum is σ = 15478646722560. Its totient is φ = 2149505799840.

The previous prime is 6541105005541. The next prime is 6541105005637. The reversal of 6541105005636 is 6365005011456.

It is not an unprimeable number, because it can be changed into a prime (6541105005637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12018765 + ... + 12551211.

It is an arithmetic number, because the mean of its divisors is an integer number (322471806720).

Almost surely, 2^{6541105005636} is an apocalyptic number.

It is an amenable number.

6541105005636 is an abundant number, since it is smaller than the sum of its proper divisors (8937541716924).

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

6541105005636 is a wasteful number, since it uses less digits than its factorization.

6541105005636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546944 (or 546942 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 6541105005636 in words is "six trillion, five hundred forty-one billion, one hundred five million, five thousand, six hundred thirty-six".