6543115632 has 40 divisors (see below), whose sum is σ = 18781166480. Its totient is φ = 2181038400.

The previous prime is 6543115619. The next prime is 6543115661. The reversal of 6543115632 is 2365113456.

6543115632 is a `hidden beast` number, since 6 + 5 + 4 + 3 + 1 + 15 + 632 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7572619 + ... + 7573482.

It is an arithmetic number, because the mean of its divisors is an integer number (469529162).

Almost surely, 2^6543115632 is an apocalyptic number.

It is an amenable number.

6543115632 is an abundant number, since it is smaller than the sum of its proper divisors (12238050848).

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

6543115632 is a wasteful number, since it uses less digits than its factorization.

6543115632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146118 (or 15146106 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 6543115632 is about 80889.5273320348. The cubic root of 6543115632 is about 1870.3728875961.

The spelling of 6543115632 in words is "six billion, five hundred forty-three million, one hundred fifteen thousand, six hundred thirty-two".