6543232101 has 72 divisors (see below), whose sum is σ = 11247312960. Its totient is φ = 3653766144.

The previous prime is 6543232067. The next prime is 6543232139. The reversal of 6543232101 is 1012323456.

6543232101 is a `hidden beast` number, since 654 + 3 + 2 + 3 + 2 + 1 + 0 + 1 = 666.

6543232101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 6543232101 - 2¹⁴ = 6543215717 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543232301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5021016 + ... + 5022318.

It is an arithmetic number, because the mean of its divisors is an integer number (156212680).

Almost surely, 2^6543232101 is an apocalyptic number.

It is an amenable number.

6543232101 is a deficient number, since it is larger than the sum of its proper divisors (4704080859).

6543232101 is a wasteful number, since it uses less digits than its factorization.

6543232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6543232101 is about 80890.2472551543. The cubic root of 6543232101 is about 1870.3839852230.

Adding to 6543232101 its reverse (1012323456), we get a palindrome (7555555557).

The spelling of 6543232101 in words is "six billion, five hundred forty-three million, two hundred thirty-two thousand, one hundred one".