16383656 has 8 divisors (see below), whose sum is σ = 30719370. Its totient is φ = 8191824.

The previous prime is 16383649. The next prime is 16383671. The reversal of 16383656 is 65638361.

It can be written as a sum of positive squares in only one way, i.e., 8352100 + 8031556 = 2890^2 + 2834^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023971 + ... + 1023986.

Almost surely, 2^16383656 is an apocalyptic number.

It is an amenable number.

16383656 is a deficient number, since it is larger than the sum of its proper divisors (14335714).

16383656 is a wasteful number, since it uses less digits than its factorization.

16383656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047963 (or 2047959 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 16383656 is about 4047.6729116864. The cubic root of 16383656 is about 253.9823907440.

The spelling of 16383656 in words is "sixteen million, three hundred eighty-three thousand, six hundred fifty-six".