16776979959222 has 192 divisors, whose sum is σ = 43102985103360. Its totient is φ = 4614419577600.

The previous prime is 16776979959197. The next prime is 16776979959227. The reversal of 16776979959222 is 22295997967761.

16776979959222 is a `hidden beast` number, since 16 + 7 + 7 + 6 + 9 + 7 + 9 + 9 + 592 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16776979959227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3734024008 + ... + 3734028500.

It is an arithmetic number, because the mean of its divisors is an integer number (224494714080).

Almost surely, 2^{16776979959222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16776979959222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21551492551680).

16776979959222 is an abundant number, since it is smaller than the sum of its proper divisors (26326005144138).

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

16776979959222 is a wasteful number, since it uses less digits than its factorization.

16776979959222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339 (or 7336 counting only the distinct ones).

The product of its digits is 3240609120, while the sum is 81.

The spelling of 16776979959222 in words is "sixteen trillion, seven hundred seventy-six billion, nine hundred seventy-nine million, nine hundred fifty-nine thousand, two hundred twenty-two".