16489123568 has 20 divisors (see below), whose sum is σ = 33336707088. Its totient is φ = 7886102400.

The previous prime is 16489123559. The next prime is 16489123577. The reversal of 16489123568 is 86532198461.

It is an interprime number because it is at equal distance from previous prime (16489123559) and next prime (16489123577).

It is a congruent number.

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, 22403333 + ... + 22404068.

Almost surely, 2^16489123568 is an apocalyptic number.

It is an amenable number.

16489123568 is an abundant number, since it is smaller than the sum of its proper divisors (16847583520).

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

16489123568 is a wasteful number, since it uses less digits than its factorization.

16489123568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44807432 (or 44807426 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 16489123568 in words is "sixteen billion, four hundred eighty-nine million, one hundred twenty-three thousand, five hundred sixty-eight".