6540657337 has 16 divisors (see below), whose sum is σ = 7044174720. Its totient is φ = 6054048000.

The previous prime is 6540657311. The next prime is 6540657421. The reversal of 6540657337 is 7337560456.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6540657337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6540657737) 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, 229212 + ... + 256162.

It is an arithmetic number, because the mean of its divisors is an integer number (440260920).

Almost surely, 2^6540657337 is an apocalyptic number.

It is an amenable number.

6540657337 is a deficient number, since it is larger than the sum of its proper divisors (503517383).

6540657337 is a wasteful number, since it uses less digits than its factorization.

6540657337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27264.

The product of its (nonzero) digits is 1587600, while the sum is 46.

The square root of 6540657337 is about 80874.3305196402. The cubic root of 6540657337 is about 1870.1386207972.

The spelling of 6540657337 in words is "six billion, five hundred forty million, six hundred fifty-seven thousand, three hundred thirty-seven".