226401233646 has 64 divisors (see below), whose sum is σ = 520091066880. Its totient is φ = 64361226240.

The previous prime is 226401233627. The next prime is 226401233647. The reversal of 226401233646 is 646332104622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226401233647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12309285 + ... + 12327663.

It is an arithmetic number, because the mean of its divisors is an integer number (8126422920).

Almost surely, 2^226401233646 is an apocalyptic number.

226401233646 is an abundant number, since it is smaller than the sum of its proper divisors (293689833234).

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

226401233646 is a wasteful number, since it uses less digits than its factorization.

226401233646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19849.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 226401233646 in words is "two hundred twenty-six billion, four hundred one million, two hundred thirty-three thousand, six hundred forty-six".