226604020644 has 36 divisors (see below), whose sum is σ = 572935279644. Its totient is φ = 75517442112.

The previous prime is 226604020639. The next prime is 226604020679. The reversal of 226604020644 is 446020406622.

226604020644 is a `hidden beast` number, since 2 + 2 + 6 + 6 + 0 + 4 + 0 + 2 + 0 + 644 = 666.

226604020644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49457312100 + 177146708544 = 222390^2 + 420888^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 226604020599 and 226604020608.

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 11 ways as a sum of consecutive naturals, for example, 557487 + ... + 874070.

It is an arithmetic number, because the mean of its divisors is an integer number (15914868879).

Almost surely, 2^226604020644 is an apocalyptic number.

It is an amenable number.

226604020644 is an abundant number, since it is smaller than the sum of its proper divisors (346331259000).

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

226604020644 is a wasteful number, since it uses less digits than its factorization.

226604020644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435964 (or 1435959 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 226604020644 in words is "two hundred twenty-six billion, six hundred four million, twenty thousand, six hundred forty-four".