16669005 has 16 divisors (see below), whose sum is σ = 26931840. Its totient is φ = 8803008.

The previous prime is 16668989. The next prime is 16669007. The reversal of 16669005 is 50096661.

It is not a de Polignac number, because 16669005 - 2⁴ = 16668989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16669007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3850 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (1683240).

Almost surely, 2^16669005 is an apocalyptic number.

16669005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16669005 is a deficient number, since it is larger than the sum of its proper divisors (10262835).

16669005 is a wasteful number, since it uses less digits than its factorization.

16669005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10900.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 16669005 is about 4082.7692807701. The cubic root of 16669005 is about 255.4484228185.

The spelling of 16669005 in words is "sixteen million, six hundred sixty-nine thousand, five".