16420516710201 has 20 divisors (see below), whose sum is σ = 24602201470132. Its totient is φ = 10914527409408.

The previous prime is 16420516710127. The next prime is 16420516710217. The reversal of 16420516710201 is 10201761502461.

16420516710201 is a `hidden beast` number, since 1 + 6 + 420 + 5 + 16 + 7 + 10 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9964445535801 + 6456071174400 = 3156651^2 + 2540880^2 .

It is not a de Polignac number, because 16420516710201 - 2²³ = 16420508321593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16420516714201) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 300747820 + ... + 300802413.

Almost surely, 2^{16420516710201} is an apocalyptic number.

It is an amenable number.

16420516710201 is a deficient number, since it is larger than the sum of its proper divisors (8181684759931).

16420516710201 is an equidigital number, since it uses as much as digits as its factorization.

16420516710201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601550582 (or 601550573 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 16420516710201 in words is "sixteen trillion, four hundred twenty billion, five hundred sixteen million, seven hundred ten thousand, two hundred one".