16500023 has 8 divisors (see below), whose sum is σ = 16816128. Its totient is φ = 16186104.

The previous prime is 16500017. The next prime is 16500031. The reversal of 16500023 is 32000561.

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 16500023 - 2⁴ = 16500007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16499974 and 16500010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16500053) 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, 25340 + ... + 25982.

It is an arithmetic number, because the mean of its divisors is an integer number (2102016).

Almost surely, 2^16500023 is an apocalyptic number.

16500023 is a deficient number, since it is larger than the sum of its proper divisors (316105).

16500023 is an equidigital number, since it uses as much as digits as its factorization.

16500023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 16500023 is about 4062.0220334213. The cubic root of 16500023 is about 254.5822867736.

Adding to 16500023 its reverse (32000561), we get a palindrome (48500584).

The spelling of 16500023 in words is "sixteen million, five hundred thousand, twenty-three".