6500661164 has 12 divisors (see below), whose sum is σ = 11377152864. Its totient is φ = 3250046064.

The previous prime is 6500661149. The next prime is 6500661173. The reversal of 6500661164 is 4611660056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14759 + ... + 114974.

It is an arithmetic number, because the mean of its divisors is an integer number (948096072).

Almost surely, 2^6500661164 is an apocalyptic number.

It is an amenable number.

6500661164 is a deficient number, since it is larger than the sum of its proper divisors (4876491700).

6500661164 is a wasteful number, since it uses less digits than its factorization.

6500661164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142264 (or 142262 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6500661164 is about 80626.6777437840. The cubic root of 6500661164 is about 1866.3188532378.

The spelling of 6500661164 in words is "six billion, five hundred million, six hundred sixty-one thousand, one hundred sixty-four".