16845681208 has 16 divisors (see below), whose sum is σ = 33443632080. Its totient is φ = 7927379328.

The previous prime is 16845681169. The next prime is 16845681241. The reversal of 16845681208 is 80218654861.

It is a super-3 number, since 3×16845681208³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61932516 + ... + 61932787.

It is an arithmetic number, because the mean of its divisors is an integer number (2090227005).

Almost surely, 2^16845681208 is an apocalyptic number.

It is an amenable number.

16845681208 is a deficient number, since it is larger than the sum of its proper divisors (16597950872).

16845681208 is a wasteful number, since it uses less digits than its factorization.

16845681208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123865326 (or 123865322 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 16845681208 in words is "sixteen billion, eight hundred forty-five million, six hundred eighty-one thousand, two hundred eight".