16655139 has 10 divisors (see below), whose sum is σ = 24880020. Its totient is φ = 11103372.

The previous prime is 16655137. The next prime is 16655141. The reversal of 16655139 is 93155661.

It is an interprime number because it is at equal distance from previous prime (16655137) and next prime (16655141).

It is not a de Polignac number, because 16655139 - 2¹ = 16655137 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 102729 + ... + 102890.

It is an arithmetic number, because the mean of its divisors is an integer number (2488002).

Almost surely, 2^16655139 is an apocalyptic number.

16655139 is a deficient number, since it is larger than the sum of its proper divisors (8224881).

16655139 is an equidigital number, since it uses as much as digits as its factorization.

16655139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205631 (or 205622 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 16655139 is about 4081.0708153621. The cubic root of 16655139 is about 255.3775721503.

The spelling of 16655139 in words is "sixteen million, six hundred fifty-five thousand, one hundred thirty-nine".