16471442146 has 4 divisors (see below), whose sum is σ = 24707163222. Its totient is φ = 8235721072.

The previous prime is 16471442129. The next prime is 16471442149. The reversal of 16471442146 is 64124417461.

It is a happy number.

16471442146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16464739225 + 6702921 = 128315^2 + 2589^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16471442099 and 16471442108.

It is not an unprimeable number, because it can be changed into a prime (16471442149) by changing a digit.

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 as a sum of consecutive naturals, namely, 4117860535 + ... + 4117860538.

Almost surely, 2^16471442146 is an apocalyptic number.

16471442146 is a deficient number, since it is larger than the sum of its proper divisors (8235721076).

16471442146 is an equidigital number, since it uses as much as digits as its factorization.

16471442146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235721075.

The product of its digits is 129024, while the sum is 40.

The spelling of 16471442146 in words is "sixteen billion, four hundred seventy-one million, four hundred forty-two thousand, one hundred forty-six".