226645551 has 12 divisors (see below), whose sum is σ = 357138600. Its totient is φ = 137360880.

The previous prime is 226645541. The next prime is 226645567. The reversal of 226645551 is 155546622.

226645551 is a `hidden beast` number, since 2 + 2 + 6 + 645 + 5 + 5 + 1 = 666.

226645551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 226645551 - 2⁹ = 226645039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226645501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144576 + ... + 1144773.

It is an arithmetic number, because the mean of its divisors is an integer number (29761550).

Almost surely, 2^226645551 is an apocalyptic number.

226645551 is a deficient number, since it is larger than the sum of its proper divisors (130493049).

226645551 is a wasteful number, since it uses less digits than its factorization.

226645551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289366 (or 2289363 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 226645551 is about 15054.7517747720. The cubic root of 226645551 is about 609.6993510829.

The spelling of 226645551 in words is "two hundred twenty-six million, six hundred forty-five thousand, five hundred fifty-one".