16853351691 has 8 divisors (see below), whose sum is σ = 24513966144. Its totient is φ = 10214152520.

The previous prime is 16853351689. The next prime is 16853351699. The reversal of 16853351691 is 19615335861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16853351691 - 2¹ = 16853351689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16853351691.

It is not an unprimeable number, because it can be changed into a prime (16853351699) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 255353781 + ... + 255353846.

It is an arithmetic number, because the mean of its divisors is an integer number (3064245768).

Almost surely, 2^16853351691 is an apocalyptic number.

16853351691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16853351691 is a deficient number, since it is larger than the sum of its proper divisors (7660614453).

16853351691 is a wasteful number, since it uses less digits than its factorization.

16853351691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510707641.

The product of its digits is 583200, while the sum is 48.

The spelling of 16853351691 in words is "sixteen billion, eight hundred fifty-three million, three hundred fifty-one thousand, six hundred ninety-one".