20346412226 has 32 divisors (see below), whose sum is σ = 37297003392. Its totient is φ = 8125689600.

The previous prime is 20346412217. The next prime is 20346412231. The reversal of 20346412226 is 62221464302.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20346412192 and 20346412201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399176 + ... + 447251.

It is an arithmetic number, because the mean of its divisors is an integer number (1165531356).

Almost surely, 2^20346412226 is an apocalyptic number.

20346412226 is a deficient number, since it is larger than the sum of its proper divisors (16950591166).

20346412226 is a wasteful number, since it uses less digits than its factorization.

20346412226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846554.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 20346412226 its reverse (62221464302), we get a palindrome (82567876528).

The spelling of 20346412226 in words is "twenty billion, three hundred forty-six million, four hundred twelve thousand, two hundred twenty-six".