16800501129 has 4 divisors (see below), whose sum is σ = 22400668176. Its totient is φ = 11200334084.

The previous prime is 16800501127. The next prime is 16800501139. The reversal of 16800501129 is 92110500861.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92110500861 = 3 ⋅30703500287.

It is a cyclic number.

It is not a de Polignac number, because 16800501129 - 2¹ = 16800501127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16800501129.

It is not an unprimeable number, because it can be changed into a prime (16800501127) 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, 2800083519 + ... + 2800083524.

It is an arithmetic number, because the mean of its divisors is an integer number (5600167044).

Almost surely, 2^16800501129 is an apocalyptic number.

It is an amenable number.

16800501129 is a deficient number, since it is larger than the sum of its proper divisors (5600167047).

16800501129 is an equidigital number, since it uses as much as digits as its factorization.

16800501129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600167046.

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 16800501129 in words is "sixteen billion, eight hundred million, five hundred one thousand, one hundred twenty-nine".