16650043 has 8 divisors (see below), whose sum is σ = 16865280. Its totient is φ = 16436520.

The previous prime is 16650041. The next prime is 16650047. The reversal of 16650043 is 34005661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16650043 - 2¹ = 16650041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16650041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33946 + ... + 34432.

It is an arithmetic number, because the mean of its divisors is an integer number (2108160).

Almost surely, 2^16650043 is an apocalyptic number.

16650043 is a deficient number, since it is larger than the sum of its proper divisors (215237).

16650043 is a wasteful number, since it uses less digits than its factorization.

16650043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16650043 is about 4080.4464216554. The cubic root of 16650043 is about 255.3515233962.

The spelling of 16650043 in words is "sixteen million, six hundred fifty thousand, forty-three".