6536534943265 has 8 divisors (see below), whose sum is σ = 7866317125800. Its totient is φ = 5214244492032.

The previous prime is 6536534943259. The next prime is 6536534943299. The reversal of 6536534943265 is 5623494356356.

6536534943265 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61133551504 + 6475401391761 = 247252^2 + 2544681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6536534943265 - 2⁷ = 6536534943137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872930904 + ... + 1872934393.

It is an arithmetic number, because the mean of its divisors is an integer number (983289640725).

Almost surely, 2^{6536534943265} is an apocalyptic number.

It is an amenable number.

6536534943265 is a deficient number, since it is larger than the sum of its proper divisors (1329782182535).

6536534943265 is a wasteful number, since it uses less digits than its factorization.

6536534943265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745865651.

The product of its digits is 209952000, while the sum is 61.

The spelling of 6536534943265 in words is "six trillion, five hundred thirty-six billion, five hundred thirty-four million, nine hundred forty-three thousand, two hundred sixty-five".