11512524641 has 16 divisors (see below), whose sum is σ = 11750014224. Its totient is φ = 11277471744.

The previous prime is 11512524623. The next prime is 11512524643. The reversal of 11512524641 is 14642521511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3080694016 + 8431830625 = 55504^2 + 91825^2 .

It is a cyclic number.

It is not a de Polignac number, because 11512524641 - 2¹⁴ = 11512508257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11512524598 and 11512524607.

It is not an unprimeable number, because it can be changed into a prime (11512524643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10494005 + ... + 10495101.

It is an arithmetic number, because the mean of its divisors is an integer number (734375889).

Almost surely, 2^11512524641 is an apocalyptic number.

It is an amenable number.

11512524641 is a deficient number, since it is larger than the sum of its proper divisors (237489583).

11512524641 is a wasteful number, since it uses less digits than its factorization.

11512524641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its digits is 9600, while the sum is 32.

The spelling of 11512524641 in words is "eleven billion, five hundred twelve million, five hundred twenty-four thousand, six hundred forty-one".