16717017056 has 48 divisors (see below), whose sum is σ = 34188240240. Its totient is φ = 8036689920.

The previous prime is 16717017049. The next prime is 16717017073. The reversal of 16717017056 is 65071071761.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186275 + ... + 261021.

It is an arithmetic number, because the mean of its divisors is an integer number (712255005).

Almost surely, 2^16717017056 is an apocalyptic number.

16717017056 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 16717017056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17094120120).

16717017056 is an abundant number, since it is smaller than the sum of its proper divisors (17471223184).

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

16717017056 is a wasteful number, since it uses less digits than its factorization.

16717017056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75027 (or 75019 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 16717017056 in words is "sixteen billion, seven hundred seventeen million, seventeen thousand, fifty-six".