226498894561 has 9 divisors (see below), whose sum is σ = 234592817043. Its totient is φ = 218675262120.

The previous prime is 226498894537. The next prime is 226498894577. The reversal of 226498894561 is 165498894622.

The square root of 226498894561 is 475919.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 118770526161 + 107728368400 = 344631^2 + 328220^2 .

It is not a de Polignac number, because 226498894561 - 2⁹ = 226498894049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226498894493 and 226498894502.

It is not an unprimeable number, because it can be changed into a prime (226498894591) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13793446 + ... + 13809856.

Almost surely, 2^226498894561 is an apocalyptic number.

226498894561 is the 475919-th square number.

226498894561 is the 237960-th centered octagonal number.

It is an amenable number.

226498894561 is a deficient number, since it is larger than the sum of its proper divisors (8093922482).

226498894561 is an frugal number, since it uses more digits than its factorization.

226498894561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32880 (or 16440 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 64.

Multiplying 226498894561 by its sum of digits (64), we get a square (14495929251904 = 3807352²).

The spelling of 226498894561 in words is "two hundred twenty-six billion, four hundred ninety-eight million, eight hundred ninety-four thousand, five hundred sixty-one".