16655138 has 16 divisors (see below), whose sum is σ = 26542080. Its totient is φ = 7811136.

The previous prime is 16655137. The next prime is 16655141. The reversal of 16655138 is 83155661.

16655138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16655098 and 16655107.

It is not an unprimeable number, because it can be changed into a prime (16655131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12383 + ... + 13661.

It is an arithmetic number, because the mean of its divisors is an integer number (1658880).

Almost surely, 2^16655138 is an apocalyptic number.

16655138 is a deficient number, since it is larger than the sum of its proper divisors (9886942).

16655138 is a wasteful number, since it uses less digits than its factorization.

16655138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its digits is 21600, while the sum is 35.

The square root of 16655138 is about 4081.0706928452. The cubic root of 16655138 is about 255.3775670392.

The spelling of 16655138 in words is "sixteen million, six hundred fifty-five thousand, one hundred thirty-eight".