16493644888 has 16 divisors (see below), whose sum is σ = 35343524880. Its totient is φ = 7068704928.

The previous prime is 16493644883. The next prime is 16493644889. The reversal of 16493644888 is 88844639461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16493644883) 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, 147264631 + ... + 147264742.

It is an arithmetic number, because the mean of its divisors is an integer number (2208970305).

Almost surely, 2^16493644888 is an apocalyptic number.

It is an amenable number.

16493644888 is an abundant number, since it is smaller than the sum of its proper divisors (18849879992).

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

16493644888 is a wasteful number, since it uses less digits than its factorization.

16493644888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294529386 (or 294529382 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 61.

The spelling of 16493644888 in words is "sixteen billion, four hundred ninety-three million, six hundred forty-four thousand, eight hundred eighty-eight".