222646426646 has 16 divisors (see below), whose sum is σ = 381739970976. Its totient is φ = 95404801536.

The previous prime is 222646426571. The next prime is 222646426657. The reversal of 222646426646 is 646624646222.

It is a junction number, because it is equal to n+sod(n) for n = 222646426594 and 222646426603.

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, 1166081 + ... + 1343516.

It is an arithmetic number, because the mean of its divisors is an integer number (23858748186).

Almost surely, 2^222646426646 is an apocalyptic number.

222646426646 is a deficient number, since it is larger than the sum of its proper divisors (159093544330).

222646426646 is a wasteful number, since it uses less digits than its factorization.

222646426646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515943.

The product of its digits is 7962624, while the sum is 50.

The spelling of 222646426646 in words is "two hundred twenty-two billion, six hundred forty-six million, four hundred twenty-six thousand, six hundred forty-six".