1616544044 has 6 divisors (see below), whose sum is σ = 2828952084. Its totient is φ = 808272020.

The previous prime is 1616544031. The next prime is 1616544053. The reversal of 1616544044 is 4404456161.

It is a super-2 number, since 2×1616544044² = 5226429292383747872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616543995 and 1616544013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202068002 + ... + 202068009.

It is an arithmetic number, because the mean of its divisors is an integer number (471492014).

Almost surely, 2^1616544044 is an apocalyptic number.

It is an amenable number.

1616544044 is a deficient number, since it is larger than the sum of its proper divisors (1212408040).

1616544044 is a wasteful number, since it uses less digits than its factorization.

1616544044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404136015 (or 404136013 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1616544044 is about 40206.2687152140. The cubic root of 1616544044 is about 1173.6245366305.

The spelling of 1616544044 in words is "one billion, six hundred sixteen million, five hundred forty-four thousand, forty-four".