226399121816 has 32 divisors (see below), whose sum is σ = 485195616000. Its totient is φ = 97017266976.

The previous prime is 226399121803. The next prime is 226399121821. The reversal of 226399121816 is 618121993622.

226399121816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284165 + ... + 730443.

It is an arithmetic number, because the mean of its divisors is an integer number (15162363000).

Almost surely, 2^226399121816 is an apocalyptic number.

It is an amenable number.

226399121816 is an abundant number, since it is smaller than the sum of its proper divisors (258796494184).

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

226399121816 is a wasteful number, since it uses less digits than its factorization.

226399121816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455351 (or 455347 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The spelling of 226399121816 in words is "two hundred twenty-six billion, three hundred ninety-nine million, one hundred twenty-one thousand, eight hundred sixteen".