16444471696 has 15 divisors (see below), whose sum is σ = 31862157771. Its totient is φ = 8221979376.

The previous prime is 16444471691. The next prime is 16444471711. The reversal of 16444471696 is 69617444461.

The square root of 16444471696 is 128236.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16444471691) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 496915 + ... + 528973.

Almost surely, 2^16444471696 is an apocalyptic number.

16444471696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

16444471696 is the 128236-th square number.

It is an amenable number.

16444471696 is a deficient number, since it is larger than the sum of its proper divisors (15417686075).

16444471696 is an frugal number, since it uses more digits than its factorization.

16444471696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64126 (or 32061 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 16444471696 in words is "sixteen billion, four hundred forty-four million, four hundred seventy-one thousand, six hundred ninety-six".