11564536651255 has 32 divisors (see below), whose sum is σ = 16083921696768. Its totient is φ = 7817983555200.

The previous prime is 11564536651219. The next prime is 11564536651279. The reversal of 11564536651255 is 55215663546511.

11564536651255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11564536651255 - 2¹¹ = 11564536649207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11564536651196 and 11564536651205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80872470 + ... + 81015340.

It is an arithmetic number, because the mean of its divisors is an integer number (502622553024).

Almost surely, 2^{11564536651255} is an apocalyptic number.

11564536651255 is a deficient number, since it is larger than the sum of its proper divisors (4519385045513).

11564536651255 is a wasteful number, since it uses less digits than its factorization.

11564536651255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175527.

The product of its digits is 16200000, while the sum is 55.

The spelling of 11564536651255 in words is "eleven trillion, five hundred sixty-four billion, five hundred thirty-six million, six hundred fifty-one thousand, two hundred fifty-five".