16731166222 has 4 divisors (see below), whose sum is σ = 25096749336. Its totient is φ = 8365583110.

The previous prime is 16731166201. The next prime is 16731166229. The reversal of 16731166222 is 22266113761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22266113761 = 73 ⋅305015257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16731166229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4182791554 + ... + 4182791557.

It is an arithmetic number, because the mean of its divisors is an integer number (6274187334).

Almost surely, 2^16731166222 is an apocalyptic number.

16731166222 is a deficient number, since it is larger than the sum of its proper divisors (8365583114).

16731166222 is an equidigital number, since it uses as much as digits as its factorization.

16731166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365583113.

The product of its digits is 36288, while the sum is 37.

Adding to 16731166222 its reverse (22266113761), we get a palindrome (38997279983).

The spelling of 16731166222 in words is "sixteen billion, seven hundred thirty-one million, one hundred sixty-six thousand, two hundred twenty-two".