6536340665 has 16 divisors (see below), whose sum is σ = 7989701760. Its totient is φ = 5131969920.

The previous prime is 6536340647. The next prime is 6536340673. The reversal of 6536340665 is 5660436356.

It is not a de Polignac number, because 6536340665 - 2⁸ = 6536340409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164060 + ... + 199970.

It is an arithmetic number, because the mean of its divisors is an integer number (499356360).

Almost surely, 2^6536340665 is an apocalyptic number.

It is an amenable number.

6536340665 is a deficient number, since it is larger than the sum of its proper divisors (1453361095).

6536340665 is a wasteful number, since it uses less digits than its factorization.

6536340665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36592.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The square root of 6536340665 is about 80847.6385864176. The cubic root of 6536340665 is about 1869.7271151844.

The spelling of 6536340665 in words is "six billion, five hundred thirty-six million, three hundred forty thousand, six hundred sixty-five".