226631772067 has 4 divisors (see below), whose sum is σ = 226635735456. Its totient is φ = 226627808680.

The previous prime is 226631772043. The next prime is 226631772071. The reversal of 226631772067 is 760277136622.

226631772067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226631772067 is a prime.

It is a super-2 number, since 2×226631772067² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 226631772067.

It is not an unprimeable number, because it can be changed into a prime (226631772467) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1894648 + ... + 2010709.

It is an arithmetic number, because the mean of its divisors is an integer number (56658933864).

Almost surely, 2^226631772067 is an apocalyptic number.

226631772067 is a deficient number, since it is larger than the sum of its proper divisors (3963389).

226631772067 is an equidigital number, since it uses as much as digits as its factorization.

226631772067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963388.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 226631772067 in words is "two hundred twenty-six billion, six hundred thirty-one million, seven hundred seventy-two thousand, sixty-seven".