6537585040 has 80 divisors (see below), whose sum is σ = 17931709440. Its totient is φ = 2169146880.

The previous prime is 6537585029. The next prime is 6537585049. The reversal of 6537585040 is 405857356.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (6537585049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170935 + ... + 205654.

It is an arithmetic number, because the mean of its divisors is an integer number (224146368).

Almost surely, 2^6537585040 is an apocalyptic number.

It is an amenable number.

6537585040 is an abundant number, since it is smaller than the sum of its proper divisors (11394124400).

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

6537585040 is a wasteful number, since it uses less digits than its factorization.

6537585040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376640 (or 376634 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 6537585040 is about 80855.3340231799. The cubic root of 6537585040 is about 1869.8457592478.

The spelling of 6537585040 in words is "six billion, five hundred thirty-seven million, five hundred eighty-five thousand, forty".