16666683304 has 8 divisors (see below), whose sum is σ = 31250031210. Its totient is φ = 8333341648.

The previous prime is 16666683287. The next prime is 16666683317. The reversal of 16666683304 is 40338666661.

It can be written as a sum of positive squares in only one way, i.e., 8593660804 + 8073022500 = 92702^2 + 89850^2 .

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, 1041667699 + ... + 1041667714.

Almost surely, 2^16666683304 is an apocalyptic number.

It is an amenable number.

16666683304 is a deficient number, since it is larger than the sum of its proper divisors (14583347906).

16666683304 is a wasteful number, since it uses less digits than its factorization.

16666683304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083335419 (or 2083335415 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 16666683304 in words is "sixteen billion, six hundred sixty-six million, six hundred eighty-three thousand, three hundred four".