16195855 has 16 divisors (see below), whose sum is σ = 21145824. Its totient is φ = 11836800.

The previous prime is 16195819. The next prime is 16195859. The reversal of 16195855 is 55859161.

It is not a de Polignac number, because 16195855 - 2¹⁵ = 16163087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16195859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5332 + ... + 7798.

It is an arithmetic number, because the mean of its divisors is an integer number (1321614).

Almost surely, 2^16195855 is an apocalyptic number.

16195855 is a deficient number, since it is larger than the sum of its proper divisors (4949969).

16195855 is a wasteful number, since it uses less digits than its factorization.

16195855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its digits is 54000, while the sum is 40.

The square root of 16195855 is about 4024.4074097934. The cubic root of 16195855 is about 253.0082173275.

The spelling of 16195855 in words is "sixteen million, one hundred ninety-five thousand, eight hundred fifty-five".