16442621222276 has 6 divisors (see below), whose sum is σ = 28774587138990. Its totient is φ = 8221310611136.

The previous prime is 16442621222249. The next prime is 16442621222281. The reversal of 16442621222276 is 67222212624461.

16442621222276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13528860985600 + 2913760236676 = 3678160^2 + 1706974^2 .

It is a super-3 number, since 3×16442621222276³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16442621222276.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055327652781 + ... + 2055327652788.

It is an arithmetic number, because the mean of its divisors is an integer number (4795764523165).

Almost surely, 2^{16442621222276} is an apocalyptic number.

It is an amenable number.

16442621222276 is a deficient number, since it is larger than the sum of its proper divisors (12331965916714).

16442621222276 is a wasteful number, since it uses less digits than its factorization.

16442621222276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110655305573 (or 4110655305571 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 47.

The spelling of 16442621222276 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-one million, two hundred twenty-two thousand, two hundred seventy-six".