13222072537065 has 24 divisors (see below), whose sum is σ = 26192296074048. Its totient is φ = 6044376016800.

The previous prime is 13222072537027. The next prime is 13222072537087. The reversal of 13222072537065 is 56073527022231.

It is a happy number.

13222072537065 is a `hidden beast` number, since 1 + 3 + 22 + 20 + 72 + 537 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 13222072537065 - 2¹² = 13222072532969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13222072537065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20987416411 + ... + 20987417040.

It is an arithmetic number, because the mean of its divisors is an integer number (1091345669752).

Almost surely, 2^{13222072537065} is an apocalyptic number.

13222072537065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13222072537065 is a deficient number, since it is larger than the sum of its proper divisors (12970223536983).

13222072537065 is a wasteful number, since it uses less digits than its factorization.

13222072537065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41974833469 (or 41974833466 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

Adding to 13222072537065 its reverse (56073527022231), we get a palindrome (69295599559296).

The spelling of 13222072537065 in words is "thirteen trillion, two hundred twenty-two billion, seventy-two million, five hundred thirty-seven thousand, sixty-five".