16646444122 has 128 divisors (see below), whose sum is σ = 33530112000. Its totient is φ = 6003486720.

The previous prime is 16646444119. The next prime is 16646444167. The reversal of 16646444122 is 22144464661.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25259829 + ... + 25260487.

It is an arithmetic number, because the mean of its divisors is an integer number (261954000).

Almost surely, 2^16646444122 is an apocalyptic number.

16646444122 is an abundant number, since it is smaller than the sum of its proper divisors (16883667878).

16646444122 is a wasteful number, since it uses less digits than its factorization.

16646444122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its digits is 221184, while the sum is 40.

The spelling of 16646444122 in words is "sixteen billion, six hundred forty-six million, four hundred forty-four thousand, one hundred twenty-two".