16616006656 has 88 divisors (see below), whose sum is σ = 35053810560. Its totient is φ = 7856504832.

The previous prime is 16616006653. The next prime is 16616006677. The reversal of 16616006656 is 65660061661.

It is not an unprimeable number, because it can be changed into a prime (16616006653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092165 + ... + 2100091.

Almost surely, 2^16616006656 is an apocalyptic number.

16616006656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16616006656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17526905280).

16616006656 is an abundant number, since it is smaller than the sum of its proper divisors (18437803904).

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

16616006656 is an equidigital number, since it uses as much as digits as its factorization.

16616006656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059 (or 8041 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 16616006656 in words is "sixteen billion, six hundred sixteen million, six thousand, six hundred fifty-six".