16999977222 has 96 divisors (see below), whose sum is σ = 39538437120. Its totient is φ = 5468744160.

The previous prime is 16999977173. The next prime is 16999977227. The reversal of 16999977222 is 22277999961.

It is a self number, because there is not a number n which added to its sum of digits gives 16999977222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16999977227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6311308 + ... + 6314000.

It is an arithmetic number, because the mean of its divisors is an integer number (411858720).

Almost surely, 2^16999977222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16999977222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19769218560).

16999977222 is an abundant number, since it is smaller than the sum of its proper divisors (22538459898).

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

16999977222 is a wasteful number, since it uses less digits than its factorization.

16999977222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3148 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 16999977222 in words is "sixteen billion, nine hundred ninety-nine million, nine hundred seventy-seven thousand, two hundred twenty-two".