16800084750691 has 16 divisors (see below), whose sum is σ = 18917689988736. Its totient is φ = 14786554120000.

The previous prime is 16800084750689. The next prime is 16800084750749. The reversal of 16800084750691 is 19605748000861.

It is a cyclic number.

It is not a de Polignac number, because 16800084750691 - 2¹ = 16800084750689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16800084750611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142119325 + ... + 142237486.

It is an arithmetic number, because the mean of its divisors is an integer number (1182355624296).

Almost surely, 2^{16800084750691} is an apocalyptic number.

16800084750691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16800084750691 is a deficient number, since it is larger than the sum of its proper divisors (2117605238045).

16800084750691 is a wasteful number, since it uses less digits than its factorization.

16800084750691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284356994.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 16800084750691 in words is "sixteen trillion, eight hundred billion, eighty-four million, seven hundred fifty thousand, six hundred ninety-one".