16800651145 has 4 divisors (see below), whose sum is σ = 20160781380. Its totient is φ = 13440520912.

The previous prime is 16800651107. The next prime is 16800651151. The reversal of 16800651145 is 54115600861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8247545856 + 8553105289 = 90816^2 + 92483^2 .

It is a cyclic number.

It is not a de Polignac number, because 16800651145 - 2¹³ = 16800642953 is a prime.

It is a super-2 number, since 2×16800651145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680065110 + ... + 1680065119.

It is an arithmetic number, because the mean of its divisors is an integer number (5040195345).

Almost surely, 2^16800651145 is an apocalyptic number.

It is an amenable number.

16800651145 is a deficient number, since it is larger than the sum of its proper divisors (3360130235).

16800651145 is an equidigital number, since it uses as much as digits as its factorization.

16800651145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360130234.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 16800651145 in words is "sixteen billion, eight hundred million, six hundred fifty-one thousand, one hundred forty-five".