16717208384 has 42 divisors (see below), whose sum is σ = 33962861970. Its totient is φ = 8164160256.

The previous prime is 16717208377. The next prime is 16717208411. The reversal of 16717208384 is 48380271761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14496160000 + 2221048384 = 120400^2 + 47128^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47702 + ... + 188970.

Almost surely, 2^16717208384 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 16717208384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16981430985).

16717208384 is an abundant number, since it is smaller than the sum of its proper divisors (17245653586).

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

16717208384 is an equidigital number, since it uses as much as digits as its factorization.

16717208384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141367 (or 141314 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 16717208384 in words is "sixteen billion, seven hundred seventeen million, two hundred eight thousand, three hundred eighty-four".