16004976386884 has 27 divisors (see below), whose sum is σ = 28108745085757. Its totient is φ = 7974007765424.

The previous prime is 16004976386863. The next prime is 16004976386887. The reversal of 16004976386884 is 48868367940061.

The square root of 16004976386884 is 4000622.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15142916132100 + 862060254784 = 3891390^2 + 928472^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16004976386887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2344361079 + ... + 2344367905.

Almost surely, 2^{16004976386884} is an apocalyptic number.

16004976386884 is the 4000622-nd square number.

It is an amenable number.

16004976386884 is a deficient number, since it is larger than the sum of its proper divisors (12103768698873).

16004976386884 is an frugal number, since it uses more digits than its factorization.

16004976386884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244 (or 7122 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 70.

The spelling of 16004976386884 in words is "sixteen trillion, four billion, nine hundred seventy-six million, three hundred eighty-six thousand, eight hundred eighty-four".