11736564544 has 14 divisors (see below), whose sum is σ = 23289745394. Its totient is φ = 5868282240.

The previous prime is 11736564529. The next prime is 11736564547. The reversal of 11736564544 is 44546563711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11075457600 + 661106944 = 105240^2 + 25712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11736564494 and 11736564503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11736564547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91691847 + ... + 91691974.

Almost surely, 2^11736564544 is an apocalyptic number.

It is an amenable number.

11736564544 is a deficient number, since it is larger than the sum of its proper divisors (11553180850).

11736564544 is an equidigital number, since it uses as much as digits as its factorization.

11736564544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183383833 (or 183383823 counting only the distinct ones).

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

The spelling of 11736564544 in words is "eleven billion, seven hundred thirty-six million, five hundred sixty-four thousand, five hundred forty-four".