11544642916 has 27 divisors (see below), whose sum is σ = 20887914873. Its totient is φ = 5582894160.

The previous prime is 11544642911. The next prime is 11544642961. The reversal of 11544642916 is 61924644511.

The square root of 11544642916 is 107446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5127992100 + 6416650816 = 71610^2 + 80104^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11544642911) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6660786 + ... + 6662518.

Almost surely, 2^11544642916 is an apocalyptic number.

11544642916 is the 107446-th square number.

It is an amenable number.

11544642916 is a deficient number, since it is larger than the sum of its proper divisors (9343271957).

11544642916 is an frugal number, since it uses more digits than its factorization.

11544642916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 1766 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 11544642916 in words is "eleven billion, five hundred forty-four million, six hundred forty-two thousand, nine hundred sixteen".