16516715556 has 96 divisors (see below), whose sum is σ = 43453218816. Its totient is φ = 4837536000.

The previous prime is 16516715543. The next prime is 16516715591. The reversal of 16516715556 is 65551761561.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4053136 + ... + 4057208.

It is an arithmetic number, because the mean of its divisors is an integer number (452637696).

Almost surely, 2^16516715556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16516715556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21726609408).

16516715556 is an abundant number, since it is smaller than the sum of its proper divisors (26936503260).

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

16516715556 is a wasteful number, since it uses less digits than its factorization.

16516715556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113 (or 5111 counting only the distinct ones).

The product of its digits is 945000, while the sum is 48.

The spelling of 16516715556 in words is "sixteen billion, five hundred sixteen million, seven hundred fifteen thousand, five hundred fifty-six".