11636445745 has 16 divisors (see below), whose sum is σ = 14061934800. Its totient is φ = 9243869184.

The previous prime is 11636445713. The next prime is 11636445757. The reversal of 11636445745 is 54754463611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2808152064 + 8828293681 = 52992^2 + 93959^2 .

It is a cyclic number.

It is not a de Polignac number, because 11636445745 - 2⁵ = 11636445713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11636445695 and 11636445704.

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, 526681 + ... + 548329.

It is an arithmetic number, because the mean of its divisors is an integer number (878870925).

Almost surely, 2^11636445745 is an apocalyptic number.

It is an amenable number.

11636445745 is a deficient number, since it is larger than the sum of its proper divisors (2425489055).

11636445745 is a wasteful number, since it uses less digits than its factorization.

11636445745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22404.

The product of its digits is 1209600, while the sum is 46.

The spelling of 11636445745 in words is "eleven billion, six hundred thirty-six million, four hundred forty-five thousand, seven hundred forty-five".