11213864064605 has 54 divisors (see below), whose sum is σ = 14091919875306. Its totient is φ = 8566304925696.

The previous prime is 11213864064563. The next prime is 11213864064617. The reversal of 11213864064605 is 50646046831211.

It can be written as a sum of positive squares in 27 ways, for example, as 11095707564484 + 118156500121 = 3331022^2 + 343739^2 .

It is not a de Polignac number, because 11213864064605 - 2⁸ = 11213864064349 is a prime.

It is a super-2 number, since 2×11213864064605² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11213864064605.

It is a congruent number.

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 53 ways as a sum of consecutive naturals, for example, 24537995537 + ... + 24537995993.

Almost surely, 2^{11213864064605} is an apocalyptic number.

It is an amenable number.

11213864064605 is a deficient number, since it is larger than the sum of its proper divisors (2878055810701).

11213864064605 is an frugal number, since it uses more digits than its factorization.

11213864064605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 11213864064605 in words is "eleven trillion, two hundred thirteen billion, eight hundred sixty-four million, sixty-four thousand, six hundred five".