16488121656 has 32 divisors (see below), whose sum is σ = 41835536640. Its totient is φ = 5414009568.

The previous prime is 16488121613. The next prime is 16488121667. The reversal of 16488121656 is 65612188461.

16488121656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5125296 + ... + 5128511.

It is an arithmetic number, because the mean of its divisors is an integer number (1307360520).

Almost surely, 2^16488121656 is an apocalyptic number.

It is an amenable number.

16488121656 is an abundant number, since it is smaller than the sum of its proper divisors (25347414984).

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

16488121656 is a wasteful number, since it uses less digits than its factorization.

16488121656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253883 (or 10253879 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The spelling of 16488121656 in words is "sixteen billion, four hundred eighty-eight million, one hundred twenty-one thousand, six hundred fifty-six".