16194171226 has 16 divisors (see below), whose sum is σ = 25224608808. Its totient is φ = 7791379200.

The previous prime is 16194171221. The next prime is 16194171233. The reversal of 16194171226 is 62217149161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12376785001 + 3817386225 = 111251^2 + 61785^2 .

It is not an unprimeable number, because it can be changed into a prime (16194171221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346685 + ... + 1358656.

Almost surely, 2^16194171226 is an apocalyptic number.

16194171226 is a deficient number, since it is larger than the sum of its proper divisors (9030437582).

16194171226 is a wasteful number, since it uses less digits than its factorization.

16194171226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705457.

The product of its digits is 36288, while the sum is 40.

The spelling of 16194171226 in words is "sixteen billion, one hundred ninety-four million, one hundred seventy-one thousand, two hundred twenty-six".