16564330144 has 24 divisors (see below), whose sum is σ = 32703429780. Its totient is φ = 8258697216.

The previous prime is 16564330121. The next prime is 16564330151. The reversal of 16564330144 is 44103346561.

It can be written as a sum of positive squares in 2 ways, for example, as 16233817744 + 330512400 = 127412^2 + 18180^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721899 + ... + 744490.

Almost surely, 2^16564330144 is an apocalyptic number.

It is an amenable number.

16564330144 is a deficient number, since it is larger than the sum of its proper divisors (16139099636).

16564330144 is a wasteful number, since it uses less digits than its factorization.

16564330144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466752 (or 1466744 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 16564330144 in words is "sixteen billion, five hundred sixty-four million, three hundred thirty thousand, one hundred forty-four".