226660505 has 8 divisors (see below), whose sum is σ = 278626824. Its totient is φ = 176905600.

The previous prime is 226660457. The next prime is 226660591. The reversal of 226660505 is 505066622.

It can be written as a sum of positive squares in 4 ways, for example, as 8684809 + 217975696 = 2947^2 + 14764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226660505 - 2²² = 222466201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552626 + ... + 553035.

It is an arithmetic number, because the mean of its divisors is an integer number (34828353).

Almost surely, 2^226660505 is an apocalyptic number.

It is an amenable number.

226660505 is a deficient number, since it is larger than the sum of its proper divisors (51966319).

226660505 is a wasteful number, since it uses less digits than its factorization.

226660505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105707.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 226660505 is about 15055.2484204014. The cubic root of 226660505 is about 609.7127600432.

The spelling of 226660505 in words is "two hundred twenty-six million, six hundred sixty thousand, five hundred five".