11656214044 has 12 divisors (see below), whose sum is σ = 20949682264. Its totient is φ = 5670590544.

The previous prime is 11656214041. The next prime is 11656214057. The reversal of 11656214044 is 44041265611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11656214041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39378954 + ... + 39379249.

Almost surely, 2^11656214044 is an apocalyptic number.

It is an amenable number.

11656214044 is a deficient number, since it is larger than the sum of its proper divisors (9293468220).

11656214044 is a wasteful number, since it uses less digits than its factorization.

11656214044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78758244 (or 78758242 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 11656214044 its reverse (44041265611), we get a palindrome (55697479655).

The spelling of 11656214044 in words is "eleven billion, six hundred fifty-six million, two hundred fourteen thousand, forty-four".