16366636 has 72 divisors (see below), whose sum is σ = 35417088. Its totient is φ = 6552000.

The previous prime is 16366621. The next prime is 16366661. The reversal of 16366636 is 63666361.

It is a junction number, because it is equal to n+sod(n) for n = 16366595 and 16366604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230481 + ... + 230551.

It is an arithmetic number, because the mean of its divisors is an integer number (491904).

Almost surely, 2^16366636 is an apocalyptic number.

It is an amenable number.

16366636 is an abundant number, since it is smaller than the sum of its proper divisors (19050452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16366636 is a wasteful number, since it uses less digits than its factorization.

16366636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 128 counting only the distinct ones).

The product of its digits is 69984, while the sum is 37.

The square root of 16366636 is about 4045.5699227674. The cubic root of 16366636 is about 253.8944112347.

The spelling of 16366636 in words is "sixteen million, three hundred sixty-six thousand, six hundred thirty-six".