16671755 has 4 divisors (see below), whose sum is σ = 20006112. Its totient is φ = 13337400.

The previous prime is 16671751. The next prime is 16671763. The reversal of 16671755 is 55717661.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16671755 - 2² = 16671751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16671751) 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 3 ways as a sum of consecutive naturals, for example, 1667171 + ... + 1667180.

It is an arithmetic number, because the mean of its divisors is an integer number (5001528).

Almost surely, 2^16671755 is an apocalyptic number.

16671755 is a deficient number, since it is larger than the sum of its proper divisors (3334357).

16671755 is an equidigital number, since it uses as much as digits as its factorization.

16671755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334356.

The product of its digits is 44100, while the sum is 38.

The square root of 16671755 is about 4083.1060480962. The cubic root of 16671755 is about 255.4624697384.

The spelling of 16671755 in words is "sixteen million, six hundred seventy-one thousand, seven hundred fifty-five".