16851850016850 has 36 divisors (see below), whose sum is σ = 45275303713146. Its totient is φ = 4493826671040.

The previous prime is 16851850016839. The next prime is 16851850016861. The reversal of 16851850016850 is 5861005815861.

16851850016850 is a `hidden beast` number, since 1 + 6 + 8 + 51 + 8 + 500 + 1 + 6 + 85 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16851850016839) and next prime (16851850016861).

It can be written as a sum of positive squares in 3 ways, for example, as 7600403875689 + 9251446141161 = 2756883^2 + 3041619^2 .

It is a super-3 number, since 3×16851850016850³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

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 17 ways as a sum of consecutive naturals, for example, 18724277347 + ... + 18724278246.

Almost surely, 2^{16851850016850} is an apocalyptic number.

16851850016850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16851850016850 is an abundant number, since it is smaller than the sum of its proper divisors (28423453696296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16851850016850 is a wasteful number, since it uses less digits than its factorization.

16851850016850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37448555611 (or 37448555603 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 54.

The spelling of 16851850016850 in words is "sixteen trillion, eight hundred fifty-one billion, eight hundred fifty million, sixteen thousand, eight hundred fifty".