226666643 has 8 divisors (see below), whose sum is σ = 259266912. Its totient is φ = 194121216.

The previous prime is 226666579. The next prime is 226666669. The reversal of 226666643 is 346666622.

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

It is a cyclic number.

It is not a de Polignac number, because 226666643 - 2⁶ = 226666579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226666643.

It is not an unprimeable number, because it can be changed into a prime (226666243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4430 + ... + 21747.

It is an arithmetic number, because the mean of its divisors is an integer number (32408364).

Almost surely, 2^226666643 is an apocalyptic number.

226666643 is a deficient number, since it is larger than the sum of its proper divisors (32600269).

226666643 is a wasteful number, since it uses less digits than its factorization.

226666643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27421.

The product of its digits is 373248, while the sum is 41.

The square root of 226666643 is about 15055.4522681984. The cubic root of 226666643 is about 609.7182636975.

The spelling of 226666643 in words is "two hundred twenty-six million, six hundred sixty-six thousand, six hundred forty-three".