16870207201 has 4 divisors (see below), whose sum is σ = 16890558100. Its totient is φ = 16849856304.

The previous prime is 16870207181. The next prime is 16870207253. The reversal of 16870207201 is 10270207861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10270207861 = 2141 ⋅4796921.

It can be written as a sum of positive squares in 2 ways, for example, as 4429035601 + 12441171600 = 66551^2 + 111540^2 .

It is a cyclic number.

It is not a de Polignac number, because 16870207201 - 2⁷ = 16870207073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16870207271) 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, 10174206 + ... + 10175863.

It is an arithmetic number, because the mean of its divisors is an integer number (4222639525).

Almost surely, 2^16870207201 is an apocalyptic number.

It is an amenable number.

16870207201 is a deficient number, since it is larger than the sum of its proper divisors (20350899).

16870207201 is an equidigital number, since it uses as much as digits as its factorization.

16870207201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20350898.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 16870207201 in words is "sixteen billion, eight hundred seventy million, two hundred seven thousand, two hundred one".