16500201 has 4 divisors (see below), whose sum is σ = 22000272. Its totient is φ = 11000132.

The previous prime is 16500193. The next prime is 16500233. The reversal of 16500201 is 10200561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16500201 - 2³ = 16500193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16500241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750031 + ... + 2750036.

It is an arithmetic number, because the mean of its divisors is an integer number (5500068).

Almost surely, 2^16500201 is an apocalyptic number.

It is an amenable number.

16500201 is a deficient number, since it is larger than the sum of its proper divisors (5500071).

16500201 is an equidigital number, since it uses as much as digits as its factorization.

16500201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500070.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 16500201 is about 4062.0439436323. The cubic root of 16500201 is about 254.5832022367.

Adding to 16500201 its reverse (10200561), we get a palindrome (26700762).

The spelling of 16500201 in words is "sixteen million, five hundred thousand, two hundred one".