16800722387 has 2 divisors, whose sum is σ = 16800722388. Its totient is φ = 16800722386.

The previous prime is 16800722357. The next prime is 16800722429. The reversal of 16800722387 is 78322700861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16800722387 - 2²⁸ = 16532286931 is a prime.

It is not a weakly prime, because it can be changed into another prime (16800722357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8400361193 + 8400361194.

It is an arithmetic number, because the mean of its divisors is an integer number (8400361194).

Almost surely, 2^16800722387 is an apocalyptic number.

16800722387 is a deficient number, since it is larger than the sum of its proper divisors (1).

16800722387 is an equidigital number, since it uses as much as digits as its factorization.

16800722387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 16800722387 in words is "sixteen billion, eight hundred million, seven hundred twenty-two thousand, three hundred eighty-seven".