6543060721100 has 72 divisors (see below), whose sum is σ = 14949236312640. Its totient is φ = 2478893647680.

The previous prime is 6543060721031. The next prime is 6543060721111. The reversal of 6543060721100 is 11270603456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7735679 + ... + 8539721.

It is an arithmetic number, because the mean of its divisors is an integer number (207628282120).

Almost surely, 2^{6543060721100} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6543060721100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7474618156320).

6543060721100 is an abundant number, since it is smaller than the sum of its proper divisors (8406175591540).

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

6543060721100 is a wasteful number, since it uses less digits than its factorization.

6543060721100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808359 (or 808352 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 6543060721100 in words is "six trillion, five hundred forty-three billion, sixty million, seven hundred twenty-one thousand, one hundred".