16805850125 has 32 divisors (see below), whose sum is σ = 21393340800. Its totient is φ = 13177987200.

The previous prime is 16805850119. The next prime is 16805850133. The reversal of 16805850125 is 52105850861.

It is not a de Polignac number, because 16805850125 - 2¹⁰ = 16805849101 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 1481726 + ... + 1493024.

It is an arithmetic number, because the mean of its divisors is an integer number (668541900).

Almost surely, 2^16805850125 is an apocalyptic number.

It is an amenable number.

16805850125 is a deficient number, since it is larger than the sum of its proper divisors (4587490675).

16805850125 is a wasteful number, since it uses less digits than its factorization.

16805850125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11550 (or 11540 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 16805850125 in words is "sixteen billion, eight hundred five million, eight hundred fifty thousand, one hundred twenty-five".