18052565365 has 16 divisors (see below), whose sum is σ = 21761938800. Its totient is φ = 14376222720.

The previous prime is 18052565351. The next prime is 18052565383. The reversal of 18052565365 is 56356525081.

It can be written as a sum of positive squares in 8 ways, for example, as 81018001 + 17971547364 = 9001^2 + 134058^2 .

It is not a de Polignac number, because 18052565365 - 2¹¹ = 18052563317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2387611 + ... + 2395159.

It is an arithmetic number, because the mean of its divisors is an integer number (1360121175).

Almost surely, 2^18052565365 is an apocalyptic number.

It is an amenable number.

18052565365 is a deficient number, since it is larger than the sum of its proper divisors (3709373435).

18052565365 is a wasteful number, since it uses less digits than its factorization.

18052565365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9672.

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 18052565365 in words is "eighteen billion, fifty-two million, five hundred sixty-five thousand, three hundred sixty-five".