6537350664 has 48 divisors (see below), whose sum is σ = 19067275500. Its totient is φ = 2011492224.

The previous prime is 6537350647. The next prime is 6537350669. The reversal of 6537350664 is 4660537356.

6537350664 is a `hidden beast` number, since 6 + 537 + 3 + 50 + 6 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5177953764 + 1359396900 = 71958^2 + 36870^2 .

It is not an unprimeable number, because it can be changed into a prime (6537350669) 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 11 ways as a sum of consecutive naturals, for example, 3491239 + ... + 3493110.

Almost surely, 2^6537350664 is an apocalyptic number.

It is an amenable number.

6537350664 is an abundant number, since it is smaller than the sum of its proper divisors (12529924836).

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

6537350664 is a wasteful number, since it uses less digits than its factorization.

6537350664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6984374 (or 6984367 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The square root of 6537350664 is about 80853.8846562118. The cubic root of 6537350664 is about 1869.8234139830.

The spelling of 6537350664 in words is "six billion, five hundred thirty-seven million, three hundred fifty thousand, six hundred sixty-four".