16557754244 has 6 divisors (see below), whose sum is σ = 28976069934. Its totient is φ = 8278877120.

The previous prime is 16557754229. The next prime is 16557754253. The reversal of 16557754244 is 44245775561.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11785707844 + 4772046400 = 108562^2 + 69080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16557754192 and 16557754201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069719277 + ... + 2069719284.

It is an arithmetic number, because the mean of its divisors is an integer number (4829344989).

Almost surely, 2^16557754244 is an apocalyptic number.

It is an amenable number.

16557754244 is a deficient number, since it is larger than the sum of its proper divisors (12418315690).

16557754244 is a wasteful number, since it uses less digits than its factorization.

16557754244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139438565 (or 4139438563 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 50.

The spelling of 16557754244 in words is "sixteen billion, five hundred fifty-seven million, seven hundred fifty-four thousand, two hundred forty-four".