16676515110221 has 16 divisors (see below), whose sum is σ = 17186459472000. Its totient is φ = 16171756216320.

The previous prime is 16676515110217. The next prime is 16676515110371. The reversal of 16676515110221 is 12201151567661.

It is a cyclic number.

It is not a de Polignac number, because 16676515110221 - 2² = 16676515110217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16676515110421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3226280 + ... + 6615278.

It is an arithmetic number, because the mean of its divisors is an integer number (1074153717000).

Almost surely, 2^{16676515110221} is an apocalyptic number.

It is an amenable number.

16676515110221 is a deficient number, since it is larger than the sum of its proper divisors (509944361779).

16676515110221 is a wasteful number, since it uses less digits than its factorization.

16676515110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389764.

The product of its (nonzero) digits is 151200, while the sum is 44.

Adding to 16676515110221 its reverse (12201151567661), we get a palindrome (28877666677882).

The spelling of 16676515110221 in words is "sixteen trillion, six hundred seventy-six billion, five hundred fifteen million, one hundred ten thousand, two hundred twenty-one".