16185478434 has 32 divisors (see below), whose sum is σ = 35249688000. Its totient is φ = 4934954304.

The previous prime is 16185478427. The next prime is 16185478481. The reversal of 16185478434 is 43487458161.

16185478434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2444589 + ... + 2451200.

It is an arithmetic number, because the mean of its divisors is an integer number (1101552750).

Almost surely, 2^16185478434 is an apocalyptic number.

16185478434 is an abundant number, since it is smaller than the sum of its proper divisors (19064209566).

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

16185478434 is a wasteful number, since it uses less digits than its factorization.

16185478434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895842.

The product of its digits is 2580480, while the sum is 51.

The spelling of 16185478434 in words is "sixteen billion, one hundred eighty-five million, four hundred seventy-eight thousand, four hundred thirty-four".