11644401416 has 8 divisors (see below), whose sum is σ = 21833252670. Its totient is φ = 5822200704.

The previous prime is 11644401397. The next prime is 11644401437. The reversal of 11644401416 is 61410444611.

11644401416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10597878916 + 1046522500 = 102946^2 + 32350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727775081 + ... + 727775096.

Almost surely, 2^11644401416 is an apocalyptic number.

It is an amenable number.

11644401416 is a deficient number, since it is larger than the sum of its proper divisors (10188851254).

11644401416 is a wasteful number, since it uses less digits than its factorization.

11644401416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455550183 (or 1455550179 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 11644401416 in words is "eleven billion, six hundred forty-four million, four hundred one thousand, four hundred sixteen".