226691335778 has 16 divisors (see below), whose sum is σ = 340623360000. Its totient is φ = 113150384352.

The previous prime is 226691335693. The next prime is 226691335799. The reversal of 226691335778 is 877533196622.

It is a happy 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, 2726303 + ... + 2808221.

It is an arithmetic number, because the mean of its divisors is an integer number (21288960000).

Almost surely, 2^226691335778 is an apocalyptic number.

226691335778 is a deficient number, since it is larger than the sum of its proper divisors (113932024222).

226691335778 is a wasteful number, since it uses less digits than its factorization.

226691335778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84289.

The product of its digits is 22861440, while the sum is 59.

The spelling of 226691335778 in words is "two hundred twenty-six billion, six hundred ninety-one million, three hundred thirty-five thousand, seven hundred seventy-eight".