11553066205513 has 12 divisors (see below), whose sum is σ = 13439369370000. Its totient is φ = 9902563132392.

The previous prime is 11553066205507. The next prime is 11553066205579. The reversal of 11553066205513 is 31550266035511.

It is a de Polignac number, because none of the positive numbers 2^k-11553066205513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11553066205513.

It is not an unprimeable number, because it can be changed into a prime (11553066200513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7698238 + ... + 9075736.

It is an arithmetic number, because the mean of its divisors is an integer number (1119947447500).

Almost surely, 2^{11553066205513} is an apocalyptic number.

It is an amenable number.

11553066205513 is a deficient number, since it is larger than the sum of its proper divisors (1886303164487).

11553066205513 is a wasteful number, since it uses less digits than its factorization.

11553066205513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548676 (or 1548669 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 11553066205513 in words is "eleven trillion, five hundred fifty-three billion, sixty-six million, two hundred five thousand, five hundred thirteen".