6543091960 has 16 divisors (see below), whose sum is σ = 14721957000. Its totient is φ = 2617236768.

The previous prime is 6543091927. The next prime is 6543091967. The reversal of 6543091960 is 691903456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543091967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81788610 + ... + 81788689.

Almost surely, 2^6543091960 is an apocalyptic number.

It is an amenable number.

6543091960 is an abundant number, since it is smaller than the sum of its proper divisors (8178865040).

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

6543091960 is a wasteful number, since it uses less digits than its factorization.

6543091960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163577310 (or 163577306 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 6543091960 is about 80889.3810088815. The cubic root of 6543091960 is about 1870.3706320183.

The spelling of 6543091960 in words is "six billion, five hundred forty-three million, ninety-one thousand, nine hundred sixty".