6541332652500 has 120 divisors (see below), whose sum is σ = 19902033560640. Its totient is φ = 1668513792000.

The previous prime is 6541332652469. The next prime is 6541332652501. The reversal of 6541332652500 is 52562331456.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541332652501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18787885 + ... + 19132884.

It is an arithmetic number, because the mean of its divisors is an integer number (165850279672).

Almost surely, 2^{6541332652500} is an apocalyptic number.

6541332652500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6541332652500 is an abundant number, since it is smaller than the sum of its proper divisors (13360700908140).

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

6541332652500 is a wasteful number, since it uses less digits than its factorization.

6541332652500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37920819 (or 37920802 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 6541332652500 its reverse (52562331456), we get a palindrome (6593894983956).

The spelling of 6541332652500 in words is "six trillion, five hundred forty-one billion, three hundred thirty-two million, six hundred fifty-two thousand, five hundred".