16655147 has 4 divisors (see below), whose sum is σ = 17042520. Its totient is φ = 16267776.

The previous prime is 16655141. The next prime is 16655159. The reversal of 16655147 is 74155661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74155661 = 149 ⋅497689.

It is a cyclic number.

It is not a de Polignac number, because 16655147 - 2⁴ = 16655131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16655141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193622 + ... + 193707.

It is an arithmetic number, because the mean of its divisors is an integer number (4260630).

Almost surely, 2^16655147 is an apocalyptic number.

16655147 is a deficient number, since it is larger than the sum of its proper divisors (387373).

16655147 is an equidigital number, since it uses as much as digits as its factorization.

16655147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387372.

The product of its digits is 25200, while the sum is 35.

The square root of 16655147 is about 4081.0717954969. The cubic root of 16655147 is about 255.3776130390.

The spelling of 16655147 in words is "sixteen million, six hundred fifty-five thousand, one hundred forty-seven".