16868500185 has 16 divisors (see below), whose sum is σ = 27359322624. Its totient is φ = 8873292672.

The previous prime is 16868500183. The next prime is 16868500199. The reversal of 16868500185 is 58100586861.

It is not a de Polignac number, because 16868500185 - 2¹ = 16868500183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16868500183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7701417 + ... + 7703606.

It is an arithmetic number, because the mean of its divisors is an integer number (1709957664).

Almost surely, 2^16868500185 is an apocalyptic number.

16868500185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16868500185 is a deficient number, since it is larger than the sum of its proper divisors (10490822439).

16868500185 is a wasteful number, since it uses less digits than its factorization.

16868500185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15405104.

The product of its (nonzero) digits is 460800, while the sum is 48.

The spelling of 16868500185 in words is "sixteen billion, eight hundred sixty-eight million, five hundred thousand, one hundred eighty-five".