11641631044 has 12 divisors (see below), whose sum is σ = 20373777424. Its totient is φ = 5820551784.

The previous prime is 11641631039. The next prime is 11641631051. The reversal of 11641631044 is 44013614611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11641630997 and 11641631015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60187 + ... + 164029.

Almost surely, 2^11641631044 is an apocalyptic number.

It is an amenable number.

11641631044 is a deficient number, since it is larger than the sum of its proper divisors (8732146380).

11641631044 is a wasteful number, since it uses less digits than its factorization.

11641631044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131874 (or 131872 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 11641631044 in words is "eleven billion, six hundred forty-one million, six hundred thirty-one thousand, forty-four".