6540168 has 16 divisors (see below), whose sum is σ = 16350480. Its totient is φ = 2180048.

The previous prime is 6540139. The next prime is 6540169. The reversal of 6540168 is 8610456.

It is not an unprimeable number, because it can be changed into a prime (6540169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136230 + ... + 136277.

It is an arithmetic number, because the mean of its divisors is an integer number (1021905).

Almost surely, 2^6540168 is an apocalyptic number.

It is an amenable number.

6540168 is an abundant number, since it is smaller than the sum of its proper divisors (9810312).

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

6540168 is a wasteful number, since it uses less digits than its factorization.

6540168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272516 (or 272512 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 6540168 is about 2557.3752168972. The cubic root of 6540168 is about 187.0091981711.

The spelling of 6540168 in words is "six million, five hundred forty thousand, one hundred sixty-eight".