10989644616 has 96 divisors (see below), whose sum is σ = 29948318400. Its totient is φ = 3640567680.

The previous prime is 10989644609. The next prime is 10989644641. The reversal of 10989644616 is 61644698901.

It is a happy number.

10989644616 is a `hidden beast` number, since 1 + 0 + 98 + 96 + 4 + 461 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11957805 + ... + 11958723.

It is an arithmetic number, because the mean of its divisors is an integer number (311961650).

Almost surely, 2^10989644616 is an apocalyptic number.

It is an amenable number.

10989644616 is an abundant number, since it is smaller than the sum of its proper divisors (18958673784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10989644616 is a wasteful number, since it uses less digits than its factorization.

10989644616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 10989644616 in words is "ten billion, nine hundred eighty-nine million, six hundred forty-four thousand, six hundred sixteen".