16660343 has 6 divisors (see below), whose sum is σ = 19380456. Its totient is φ = 14280252.

The previous prime is 16660337. The next prime is 16660351. The reversal of 16660343 is 34306661.

It is not a de Polignac number, because 16660343 - 2⁴ = 16660327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169955 + ... + 170052.

It is an arithmetic number, because the mean of its divisors is an integer number (3230076).

Almost surely, 2^16660343 is an apocalyptic number.

16660343 is a deficient number, since it is larger than the sum of its proper divisors (2720113).

16660343 is an equidigital number, since it uses as much as digits as its factorization.

16660343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340021 (or 340014 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 16660343 is about 4081.7083433288. The cubic root of 16660343 is about 255.4041674751.

The spelling of 16660343 in words is "sixteen million, six hundred sixty thousand, three hundred forty-three".