11646161444 has 6 divisors (see below), whose sum is σ = 20380782534. Its totient is φ = 5823080720.

The previous prime is 11646161441. The next prime is 11646161489. The reversal of 11646161444 is 44416164611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11425044544 + 221116900 = 106888^2 + 14870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11646161398 and 11646161407.

It is not an unprimeable number, because it can be changed into a prime (11646161441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1455770177 + ... + 1455770184.

It is an arithmetic number, because the mean of its divisors is an integer number (3396797089).

Almost surely, 2^11646161444 is an apocalyptic number.

It is an amenable number.

11646161444 is a deficient number, since it is larger than the sum of its proper divisors (8734621090).

11646161444 is a wasteful number, since it uses less digits than its factorization.

11646161444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911540365 (or 2911540363 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The spelling of 11646161444 in words is "eleven billion, six hundred forty-six million, one hundred sixty-one thousand, four hundred forty-four".