16044691976 has 8 divisors (see below), whose sum is σ = 30083797470. Its totient is φ = 8022345984.

The previous prime is 16044691963. The next prime is 16044692003. The reversal of 16044691976 is 67919644061.

It can be written as a sum of positive squares in only one way, i.e., 11422051876 + 4622640100 = 106874^2 + 67990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002793241 + ... + 1002793256.

Almost surely, 2^16044691976 is an apocalyptic number.

It is an amenable number.

16044691976 is a deficient number, since it is larger than the sum of its proper divisors (14039105494).

16044691976 is a wasteful number, since it uses less digits than its factorization.

16044691976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005586503 (or 2005586499 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 16044691976 in words is "sixteen billion, forty-four million, six hundred ninety-one thousand, nine hundred seventy-six".