16221064442 has 16 divisors (see below), whose sum is σ = 26553528000. Its totient is φ = 7370442240.

The previous prime is 16221064399. The next prime is 16221064463. The reversal of 16221064442 is 24446012261.

It is a junction number, because it is equal to n+sod(n) for n = 16221064399 and 16221064408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77942 + ... + 196257.

It is an arithmetic number, because the mean of its divisors is an integer number (1659595500).

Almost surely, 2^16221064442 is an apocalyptic number.

16221064442 is a deficient number, since it is larger than the sum of its proper divisors (10332463558).

16221064442 is a wasteful number, since it uses less digits than its factorization.

16221064442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276901.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 16221064442 in words is "sixteen billion, two hundred twenty-one million, sixty-four thousand, four hundred forty-two".