13553343231545 has 16 divisors (see below), whose sum is σ = 17516380911120. Its totient is φ = 10007884867584.

The previous prime is 13553343231521. The next prime is 13553343231559. The reversal of 13553343231545 is 54513234335531.

13553343231545 is digitally balanced in base 2, 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 8 ways, for example, as 101085207721 + 13452258023824 = 317939^2 + 3667732^2 .

It is a cyclic number.

It is not a de Polignac number, because 13553343231545 - 2¹⁴ = 13553343215161 is a prime.

It is a super-2 number, since 2×13553343231545² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13553343231545.

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, 6796400 + ... + 8561409.

It is an arithmetic number, because the mean of its divisors is an integer number (1094773806945).

Almost surely, 2^{13553343231545} is an apocalyptic number.

It is an amenable number.

13553343231545 is a deficient number, since it is larger than the sum of its proper divisors (3963037679575).

13553343231545 is a wasteful number, since it uses less digits than its factorization.

13553343231545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15371404.

The product of its digits is 4860000, while the sum is 47.

The spelling of 13553343231545 in words is "thirteen trillion, five hundred fifty-three billion, three hundred forty-three million, two hundred thirty-one thousand, five hundred forty-five".