161012304226 has 16 divisors (see below), whose sum is σ = 248504539320. Its totient is φ = 78185502720.

The previous prime is 161012304223. The next prime is 161012304247. The reversal of 161012304226 is 622403210161.

It can be written as a sum of positive squares in 4 ways, for example, as 156815208001 + 4197096225 = 395999^2 + 64785^2 .

It is a super-2 number, since 2×161012304226² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161012304194 and 161012304203.

It is not an unprimeable number, because it can be changed into a prime (161012304223) 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, 1970911 + ... + 2050978.

Almost surely, 2^161012304226 is an apocalyptic number.

161012304226 is a deficient number, since it is larger than the sum of its proper divisors (87492235094).

161012304226 is a wasteful number, since it uses less digits than its factorization.

161012304226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022469.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 161012304226 its reverse (622403210161), we get a palindrome (783415514387).

The spelling of 161012304226 in words is "one hundred sixty-one billion, twelve million, three hundred four thousand, two hundred twenty-six".